Home / 27,909.77-38,489.04-18,332.81

Finding the Fourth Proportional to 27,909.77, 38,489.04 and 18,332.81

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Solution

The fourth proportional to 27,909.77, 38,489.04 and 18,332.81 is: 25,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.77 : 38,489.04 = 18,332.81 : x
  2. Step 2: Convert to fraction form
    27,909.77/38,489.04 = 18,332.81/x
  3. Step 3: Cross multiply
    27,909.77x = 38,489.04 × 18,332.81
  4. Step 4: Simplify right side
    27,909.77x = 705,612,257.40
  5. Step 5: Solve for x
    x = 705,612,257.40/27,909.77
  6. Step 6: Final answer
    x = 25,281.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.