Home / 15,031.48-20,745.90-8,982.52

Finding the Fourth Proportional to 15,031.48, 20,745.90 and 8,982.52

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Solution

The fourth proportional to 15,031.48, 20,745.90 and 8,982.52 is: 12,397.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.48 : 20,745.90 = 8,982.52 : x
  2. Step 2: Convert to fraction form
    15,031.48/20,745.90 = 8,982.52/x
  3. Step 3: Cross multiply
    15,031.48x = 20,745.90 × 8,982.52
  4. Step 4: Simplify right side
    15,031.48x = 186,350,461.67
  5. Step 5: Solve for x
    x = 186,350,461.67/15,031.48
  6. Step 6: Final answer
    x = 12,397.35

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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.