Home / 38,743.08-53,461.20-21,743.88

Finding the Fourth Proportional to 38,743.08, 53,461.20 and 21,743.88

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Solution

The fourth proportional to 38,743.08, 53,461.20 and 21,743.88 is: 30,004.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,743.08 : 53,461.20 = 21,743.88 : x
  2. Step 2: Convert to fraction form
    38,743.08/53,461.20 = 21,743.88/x
  3. Step 3: Cross multiply
    38,743.08x = 53,461.20 × 21,743.88
  4. Step 4: Simplify right side
    38,743.08x = 1,162,453,917.46
  5. Step 5: Solve for x
    x = 1,162,453,917.46/38,743.08
  6. Step 6: Final answer
    x = 30,004.17

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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.