Home / 20,498.49-28,291.08-12,433.47

Finding the Fourth Proportional to 20,498.49, 28,291.08 and 12,433.47

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Solution

The fourth proportional to 20,498.49, 28,291.08 and 12,433.47 is: 17,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.49 : 28,291.08 = 12,433.47 : x
  2. Step 2: Convert to fraction form
    20,498.49/28,291.08 = 12,433.47/x
  3. Step 3: Cross multiply
    20,498.49x = 28,291.08 × 12,433.47
  4. Step 4: Simplify right side
    20,498.49x = 351,756,294.45
  5. Step 5: Solve for x
    x = 351,756,294.45/20,498.49
  6. Step 6: Final answer
    x = 17,160.11

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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.