Home / 42,747.54-64,024.98-20,577.57

Finding the Fourth Proportional to 42,747.54, 64,024.98 and 20,577.57

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Solution

The fourth proportional to 42,747.54, 64,024.98 and 20,577.57 is: 30,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,747.54 : 64,024.98 = 20,577.57 : x
  2. Step 2: Convert to fraction form
    42,747.54/64,024.98 = 20,577.57/x
  3. Step 3: Cross multiply
    42,747.54x = 64,024.98 × 20,577.57
  4. Step 4: Simplify right side
    42,747.54x = 1,317,478,507.70
  5. Step 5: Solve for x
    x = 1,317,478,507.70/42,747.54
  6. Step 6: Final answer
    x = 30,819.98

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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.