Home / 38,320.02-52,881.12-21,553.02

Finding the Fourth Proportional to 38,320.02, 52,881.12 and 21,553.02

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Solution

The fourth proportional to 38,320.02, 52,881.12 and 21,553.02 is: 29,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,320.02 : 52,881.12 = 21,553.02 : x
  2. Step 2: Convert to fraction form
    38,320.02/52,881.12 = 21,553.02/x
  3. Step 3: Cross multiply
    38,320.02x = 52,881.12 × 21,553.02
  4. Step 4: Simplify right side
    38,320.02x = 1,139,747,836.98
  5. Step 5: Solve for x
    x = 1,139,747,836.98/38,320.02
  6. Step 6: Final answer
    x = 29,742.88

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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.