Home / 42,836.78-64,242.84-14,755.70

Finding the Fourth Proportional to 42,836.78, 64,242.84 and 14,755.70

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Solution

The fourth proportional to 42,836.78, 64,242.84 and 14,755.70 is: 22,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836.78 : 64,242.84 = 14,755.70 : x
  2. Step 2: Convert to fraction form
    42,836.78/64,242.84 = 14,755.70/x
  3. Step 3: Cross multiply
    42,836.78x = 64,242.84 × 14,755.70
  4. Step 4: Simplify right side
    42,836.78x = 947,948,074.19
  5. Step 5: Solve for x
    x = 947,948,074.19/42,836.78
  6. Step 6: Final answer
    x = 22,129.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.