Home / 28,462.40-39,276.09-15,713.53

Finding the Fourth Proportional to 28,462.40, 39,276.09 and 15,713.53

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Solution

The fourth proportional to 28,462.40, 39,276.09 and 15,713.53 is: 21,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.40 : 39,276.09 = 15,713.53 : x
  2. Step 2: Convert to fraction form
    28,462.40/39,276.09 = 15,713.53/x
  3. Step 3: Cross multiply
    28,462.40x = 39,276.09 × 15,713.53
  4. Step 4: Simplify right side
    28,462.40x = 617,165,920.31
  5. Step 5: Solve for x
    x = 617,165,920.31/28,462.40
  6. Step 6: Final answer
    x = 21,683.55

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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.