Home / 38,721,570.95-53,433,739.56-21,314,516.24

Finding the Fourth Proportional to 38,721,570.95, 53,433,739.56 and 21,314,516.24

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Solution

The fourth proportional to 38,721,570.95, 53,433,739.56 and 21,314,516.24 is: 29,412,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721,570.95 : 53,433,739.56 = 21,314,516.24 : x
  2. Step 2: Convert to fraction form
    38,721,570.95/53,433,739.56 = 21,314,516.24/x
  3. Step 3: Cross multiply
    38,721,570.95x = 53,433,739.56 × 21,314,516.24
  4. Step 4: Simplify right side
    38,721,570.95x = 1,138,914,309,615,550.50
  5. Step 5: Solve for x
    x = 1,138,914,309,615,550.50/38,721,570.95
  6. Step 6: Final answer
    x = 29,412,915.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.