Home / 20,319.18-28,044.84-12,363.98

Finding the Fourth Proportional to 20,319.18, 28,044.84 and 12,363.98

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Solution

The fourth proportional to 20,319.18, 28,044.84 and 12,363.98 is: 17,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.18 : 28,044.84 = 12,363.98 : x
  2. Step 2: Convert to fraction form
    20,319.18/28,044.84 = 12,363.98/x
  3. Step 3: Cross multiply
    20,319.18x = 28,044.84 × 12,363.98
  4. Step 4: Simplify right side
    20,319.18x = 346,745,700.64
  5. Step 5: Solve for x
    x = 346,745,700.64/20,319.18
  6. Step 6: Final answer
    x = 17,064.95

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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.