Home / 22,319.18-30,800.15-12,758.95

Finding the Fourth Proportional to 22,319.18, 30,800.15 and 12,758.95

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Solution

The fourth proportional to 22,319.18, 30,800.15 and 12,758.95 is: 17,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,319.18 : 30,800.15 = 12,758.95 : x
  2. Step 2: Convert to fraction form
    22,319.18/30,800.15 = 12,758.95/x
  3. Step 3: Cross multiply
    22,319.18x = 30,800.15 × 12,758.95
  4. Step 4: Simplify right side
    22,319.18x = 392,977,596.39
  5. Step 5: Solve for x
    x = 392,977,596.39/22,319.18
  6. Step 6: Final answer
    x = 17,607.17

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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.