Home / 27,909.27-38,488.35-18,332.31

Finding the Fourth Proportional to 27,909.27, 38,488.35 and 18,332.31

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Solution

The fourth proportional to 27,909.27, 38,488.35 and 18,332.31 is: 25,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.27 : 38,488.35 = 18,332.31 : x
  2. Step 2: Convert to fraction form
    27,909.27/38,488.35 = 18,332.31/x
  3. Step 3: Cross multiply
    27,909.27x = 38,488.35 × 18,332.31
  4. Step 4: Simplify right side
    27,909.27x = 705,580,363.59
  5. Step 5: Solve for x
    x = 705,580,363.59/27,909.27
  6. Step 6: Final answer
    x = 25,281.22

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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.