Home / 42,388.08-58,506.30-28,964.76

Finding the Fourth Proportional to 42,388.08, 58,506.30 and 28,964.76

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Solution

The fourth proportional to 42,388.08, 58,506.30 and 28,964.76 is: 39,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,388.08 : 58,506.30 = 28,964.76 : x
  2. Step 2: Convert to fraction form
    42,388.08/58,506.30 = 28,964.76/x
  3. Step 3: Cross multiply
    42,388.08x = 58,506.30 × 28,964.76
  4. Step 4: Simplify right side
    42,388.08x = 1,694,620,937.99
  5. Step 5: Solve for x
    x = 1,694,620,937.99/42,388.08
  6. Step 6: Final answer
    x = 39,978.71

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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.