Home / 38,629.01-53,303.63-21,630.89

Finding the Fourth Proportional to 38,629.01, 53,303.63 and 21,630.89

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Solution

The fourth proportional to 38,629.01, 53,303.63 and 21,630.89 is: 29,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.01 : 53,303.63 = 21,630.89 : x
  2. Step 2: Convert to fraction form
    38,629.01/53,303.63 = 21,630.89/x
  3. Step 3: Cross multiply
    38,629.01x = 53,303.63 × 21,630.89
  4. Step 4: Simplify right side
    38,629.01x = 1,153,004,957.13
  5. Step 5: Solve for x
    x = 1,153,004,957.13/38,629.01
  6. Step 6: Final answer
    x = 29,848.16

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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.