Home / 31,045.87-42,843.36-16,898.68

Finding the Fourth Proportional to 31,045.87, 42,843.36 and 16,898.68

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Solution

The fourth proportional to 31,045.87, 42,843.36 and 16,898.68 is: 23,320.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,045.87 : 42,843.36 = 16,898.68 : x
  2. Step 2: Convert to fraction form
    31,045.87/42,843.36 = 16,898.68/x
  3. Step 3: Cross multiply
    31,045.87x = 42,843.36 × 16,898.68
  4. Step 4: Simplify right side
    31,045.87x = 723,996,230.76
  5. Step 5: Solve for x
    x = 723,996,230.76/31,045.87
  6. Step 6: Final answer
    x = 23,320.21

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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.