Home / 31,515.30-43,502.25-28,152.27

Finding the Fourth Proportional to 31,515.30, 43,502.25 and 28,152.27

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Solution

The fourth proportional to 31,515.30, 43,502.25 and 28,152.27 is: 38,860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.30 : 43,502.25 = 28,152.27 : x
  2. Step 2: Convert to fraction form
    31,515.30/43,502.25 = 28,152.27/x
  3. Step 3: Cross multiply
    31,515.30x = 43,502.25 × 28,152.27
  4. Step 4: Simplify right side
    31,515.30x = 1,224,687,087.61
  5. Step 5: Solve for x
    x = 1,224,687,087.61/31,515.30
  6. Step 6: Final answer
    x = 38,860.08

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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.