Home / 31,468.14-43,426.20-18,040.20

Finding the Fourth Proportional to 31,468.14, 43,426.20 and 18,040.20

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Solution

The fourth proportional to 31,468.14, 43,426.20 and 18,040.20 is: 24,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,468.14 : 43,426.20 = 18,040.20 : x
  2. Step 2: Convert to fraction form
    31,468.14/43,426.20 = 18,040.20/x
  3. Step 3: Cross multiply
    31,468.14x = 43,426.20 × 18,040.20
  4. Step 4: Simplify right side
    31,468.14x = 783,417,333.24
  5. Step 5: Solve for x
    x = 783,417,333.24/31,468.14
  6. Step 6: Final answer
    x = 24,895.57

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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.