Home / 31,426.80-43,369.14-17,280.55

Finding the Fourth Proportional to 31,426.80, 43,369.14 and 17,280.55

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Solution

The fourth proportional to 31,426.80, 43,369.14 and 17,280.55 is: 23,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.80 : 43,369.14 = 17,280.55 : x
  2. Step 2: Convert to fraction form
    31,426.80/43,369.14 = 17,280.55/x
  3. Step 3: Cross multiply
    31,426.80x = 43,369.14 × 17,280.55
  4. Step 4: Simplify right side
    31,426.80x = 749,442,592.23
  5. Step 5: Solve for x
    x = 749,442,592.23/31,426.80
  6. Step 6: Final answer
    x = 23,847.24

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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.