Home / 42,659.68-63,998.88-13,079.74

Finding the Fourth Proportional to 42,659.68, 63,998.88 and 13,079.74

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Solution

The fourth proportional to 42,659.68, 63,998.88 and 13,079.74 is: 19,622.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,659.68 : 63,998.88 = 13,079.74 : x
  2. Step 2: Convert to fraction form
    42,659.68/63,998.88 = 13,079.74/x
  3. Step 3: Cross multiply
    42,659.68x = 63,998.88 × 13,079.74
  4. Step 4: Simplify right side
    42,659.68x = 837,088,710.69
  5. Step 5: Solve for x
    x = 837,088,710.69/42,659.68
  6. Step 6: Final answer
    x = 19,622.48

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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.