Home / 21,350.90-29,463.02-11,920.06

Finding the Fourth Proportional to 21,350.90, 29,463.02 and 11,920.06

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Solution

The fourth proportional to 21,350.90, 29,463.02 and 11,920.06 is: 16,449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.90 : 29,463.02 = 11,920.06 : x
  2. Step 2: Convert to fraction form
    21,350.90/29,463.02 = 11,920.06/x
  3. Step 3: Cross multiply
    21,350.90x = 29,463.02 × 11,920.06
  4. Step 4: Simplify right side
    21,350.90x = 351,200,966.18
  5. Step 5: Solve for x
    x = 351,200,966.18/21,350.90
  6. Step 6: Final answer
    x = 16,449.00

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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.