Home / 38,500.52-53,130.15-21,505.01

Finding the Fourth Proportional to 38,500.52, 53,130.15 and 21,505.01

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Solution

The fourth proportional to 38,500.52, 53,130.15 and 21,505.01 is: 29,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,500.52 : 53,130.15 = 21,505.01 : x
  2. Step 2: Convert to fraction form
    38,500.52/53,130.15 = 21,505.01/x
  3. Step 3: Cross multiply
    38,500.52x = 53,130.15 × 21,505.01
  4. Step 4: Simplify right side
    38,500.52x = 1,142,564,476.73
  5. Step 5: Solve for x
    x = 1,142,564,476.73/38,500.52
  6. Step 6: Final answer
    x = 29,676.60

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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.