Home / 40,387.38-60,590.67-12,685.38

Finding the Fourth Proportional to 40,387.38, 60,590.67 and 12,685.38

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Solution

The fourth proportional to 40,387.38, 60,590.67 and 12,685.38 is: 19,031.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,387.38 : 60,590.67 = 12,685.38 : x
  2. Step 2: Convert to fraction form
    40,387.38/60,590.67 = 12,685.38/x
  3. Step 3: Cross multiply
    40,387.38x = 60,590.67 × 12,685.38
  4. Step 4: Simplify right side
    40,387.38x = 768,615,673.40
  5. Step 5: Solve for x
    x = 768,615,673.40/40,387.38
  6. Step 6: Final answer
    x = 19,031.09

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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.