Home / 28,625.81-39,508.35-15,883.10

Finding the Fourth Proportional to 28,625.81, 39,508.35 and 15,883.10

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Solution

The fourth proportional to 28,625.81, 39,508.35 and 15,883.10 is: 21,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.81 : 39,508.35 = 15,883.10 : x
  2. Step 2: Convert to fraction form
    28,625.81/39,508.35 = 15,883.10/x
  3. Step 3: Cross multiply
    28,625.81x = 39,508.35 × 15,883.10
  4. Step 4: Simplify right side
    28,625.81x = 627,514,950.42
  5. Step 5: Solve for x
    x = 627,514,950.42/28,625.81
  6. Step 6: Final answer
    x = 21,921.30

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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.