Home / 28,385.32-42,559.44-13,593.76

Finding the Fourth Proportional to 28,385.32, 42,559.44 and 13,593.76

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Solution

The fourth proportional to 28,385.32, 42,559.44 and 13,593.76 is: 20,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.32 : 42,559.44 = 13,593.76 : x
  2. Step 2: Convert to fraction form
    28,385.32/42,559.44 = 13,593.76/x
  3. Step 3: Cross multiply
    28,385.32x = 42,559.44 × 13,593.76
  4. Step 4: Simplify right side
    28,385.32x = 578,542,813.09
  5. Step 5: Solve for x
    x = 578,542,813.09/28,385.32
  6. Step 6: Final answer
    x = 20,381.76

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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.