Home / 22,387.01-30,890.65-12,953.75

Finding the Fourth Proportional to 22,387.01, 30,890.65 and 12,953.75

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Solution

The fourth proportional to 22,387.01, 30,890.65 and 12,953.75 is: 17,874.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,387.01 : 30,890.65 = 12,953.75 : x
  2. Step 2: Convert to fraction form
    22,387.01/30,890.65 = 12,953.75/x
  3. Step 3: Cross multiply
    22,387.01x = 30,890.65 × 12,953.75
  4. Step 4: Simplify right side
    22,387.01x = 400,149,692.67
  5. Step 5: Solve for x
    x = 400,149,692.67/22,387.01
  6. Step 6: Final answer
    x = 17,874.19

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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.