Home / 29,294.12-40,428.78-16,720.76

Finding the Fourth Proportional to 29,294.12, 40,428.78 and 16,720.76

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Solution

The fourth proportional to 29,294.12, 40,428.78 and 16,720.76 is: 23,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,294.12 : 40,428.78 = 16,720.76 : x
  2. Step 2: Convert to fraction form
    29,294.12/40,428.78 = 16,720.76/x
  3. Step 3: Cross multiply
    29,294.12x = 40,428.78 × 16,720.76
  4. Step 4: Simplify right side
    29,294.12x = 675,999,927.47
  5. Step 5: Solve for x
    x = 675,999,927.47/29,294.12
  6. Step 6: Final answer
    x = 23,076.30

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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.