Home / 42,838.28-64,245.08-14,757.20

Finding the Fourth Proportional to 42,838.28, 64,245.08 and 14,757.20

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Solution

The fourth proportional to 42,838.28, 64,245.08 and 14,757.20 is: 22,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,838.28 : 64,245.08 = 14,757.20 : x
  2. Step 2: Convert to fraction form
    42,838.28/64,245.08 = 14,757.20/x
  3. Step 3: Cross multiply
    42,838.28x = 64,245.08 × 14,757.20
  4. Step 4: Simplify right side
    42,838.28x = 948,077,494.58
  5. Step 5: Solve for x
    x = 948,077,494.58/42,838.28
  6. Step 6: Final answer
    x = 22,131.55

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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.