Home / 42,031.80-63,050.94-12,449.16

Finding the Fourth Proportional to 42,031.80, 63,050.94 and 12,449.16

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Solution

The fourth proportional to 42,031.80, 63,050.94 and 12,449.16 is: 18,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,031.80 : 63,050.94 = 12,449.16 : x
  2. Step 2: Convert to fraction form
    42,031.80/63,050.94 = 12,449.16/x
  3. Step 3: Cross multiply
    42,031.80x = 63,050.94 × 12,449.16
  4. Step 4: Simplify right side
    42,031.80x = 784,931,240.21
  5. Step 5: Solve for x
    x = 784,931,240.21/42,031.80
  6. Step 6: Final answer
    x = 18,674.70

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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.