Home / 31,461.98-43,426.68-18,724.10

Finding the Fourth Proportional to 31,461.98, 43,426.68 and 18,724.10

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Solution

The fourth proportional to 31,461.98, 43,426.68 and 18,724.10 is: 25,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.98 : 43,426.68 = 18,724.10 : x
  2. Step 2: Convert to fraction form
    31,461.98/43,426.68 = 18,724.10/x
  3. Step 3: Cross multiply
    31,461.98x = 43,426.68 × 18,724.10
  4. Step 4: Simplify right side
    31,461.98x = 813,125,498.99
  5. Step 5: Solve for x
    x = 813,125,498.99/31,461.98
  6. Step 6: Final answer
    x = 25,844.70

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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.