Home / 39,378.49-59,079.17-12,723.92

Finding the Fourth Proportional to 39,378.49, 59,079.17 and 12,723.92

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Solution

The fourth proportional to 39,378.49, 59,079.17 and 12,723.92 is: 19,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.49 : 59,079.17 = 12,723.92 : x
  2. Step 2: Convert to fraction form
    39,378.49/59,079.17 = 12,723.92/x
  3. Step 3: Cross multiply
    39,378.49x = 59,079.17 × 12,723.92
  4. Step 4: Simplify right side
    39,378.49x = 751,718,590.71
  5. Step 5: Solve for x
    x = 751,718,590.71/39,378.49
  6. Step 6: Final answer
    x = 19,089.58

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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.