Home / 21,077.55-31,616.33-16,411.95

Finding the Fourth Proportional to 21,077.55, 31,616.33 and 16,411.95

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Solution

The fourth proportional to 21,077.55, 31,616.33 and 16,411.95 is: 24,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.55 : 31,616.33 = 16,411.95 : x
  2. Step 2: Convert to fraction form
    21,077.55/31,616.33 = 16,411.95/x
  3. Step 3: Cross multiply
    21,077.55x = 31,616.33 × 16,411.95
  4. Step 4: Simplify right side
    21,077.55x = 518,885,545.08
  5. Step 5: Solve for x
    x = 518,885,545.08/21,077.55
  6. Step 6: Final answer
    x = 24,617.93

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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.