Home / 42,462.68-63,694.23-12,880.53

Finding the Fourth Proportional to 42,462.68, 63,694.23 and 12,880.53

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Solution

The fourth proportional to 42,462.68, 63,694.23 and 12,880.53 is: 19,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,462.68 : 63,694.23 = 12,880.53 : x
  2. Step 2: Convert to fraction form
    42,462.68/63,694.23 = 12,880.53/x
  3. Step 3: Cross multiply
    42,462.68x = 63,694.23 × 12,880.53
  4. Step 4: Simplify right side
    42,462.68x = 820,415,440.34
  5. Step 5: Solve for x
    x = 820,415,440.34/42,462.68
  6. Step 6: Final answer
    x = 19,320.86

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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.