Home / 39,031.08-58,559.85-12,381.45

Finding the Fourth Proportional to 39,031.08, 58,559.85 and 12,381.45

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Solution

The fourth proportional to 39,031.08, 58,559.85 and 12,381.45 is: 18,576.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,031.08 : 58,559.85 = 12,381.45 : x
  2. Step 2: Convert to fraction form
    39,031.08/58,559.85 = 12,381.45/x
  3. Step 3: Cross multiply
    39,031.08x = 58,559.85 × 12,381.45
  4. Step 4: Simplify right side
    39,031.08x = 725,055,854.78
  5. Step 5: Solve for x
    x = 725,055,854.78/39,031.08
  6. Step 6: Final answer
    x = 18,576.37

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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.