Home / 31,045.95-42,843.20-16,898.76

Finding the Fourth Proportional to 31,045.95, 42,843.20 and 16,898.76

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Solution

The fourth proportional to 31,045.95, 42,843.20 and 16,898.76 is: 23,320.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,045.95 : 42,843.20 = 16,898.76 : x
  2. Step 2: Convert to fraction form
    31,045.95/42,843.20 = 16,898.76/x
  3. Step 3: Cross multiply
    31,045.95x = 42,843.20 × 16,898.76
  4. Step 4: Simplify right side
    31,045.95x = 723,996,869.94
  5. Step 5: Solve for x
    x = 723,996,869.94/31,045.95
  6. Step 6: Final answer
    x = 23,320.17

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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.