Home / 31,909.57-44,032.03-18,485.15

Finding the Fourth Proportional to 31,909.57, 44,032.03 and 18,485.15

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Solution

The fourth proportional to 31,909.57, 44,032.03 and 18,485.15 is: 25,507.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.57 : 44,032.03 = 18,485.15 : x
  2. Step 2: Convert to fraction form
    31,909.57/44,032.03 = 18,485.15/x
  3. Step 3: Cross multiply
    31,909.57x = 44,032.03 × 18,485.15
  4. Step 4: Simplify right side
    31,909.57x = 813,938,412.98
  5. Step 5: Solve for x
    x = 813,938,412.98/31,909.57
  6. Step 6: Final answer
    x = 25,507.66

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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.