Home / 28,625.16-39,502.72-15,877.91

Finding the Fourth Proportional to 28,625.16, 39,502.72 and 15,877.91

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Solution

The fourth proportional to 28,625.16, 39,502.72 and 15,877.91 is: 21,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.16 : 39,502.72 = 15,877.91 : x
  2. Step 2: Convert to fraction form
    28,625.16/39,502.72 = 15,877.91/x
  3. Step 3: Cross multiply
    28,625.16x = 39,502.72 × 15,877.91
  4. Step 4: Simplify right side
    28,625.16x = 627,220,632.92
  5. Step 5: Solve for x
    x = 627,220,632.92/28,625.16
  6. Step 6: Final answer
    x = 21,911.52

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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.