Home / 28,514.17-39,325.93-21,462.31

Finding the Fourth Proportional to 28,514.17, 39,325.93 and 21,462.31

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Solution

The fourth proportional to 28,514.17, 39,325.93 and 21,462.31 is: 29,600.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.17 : 39,325.93 = 21,462.31 : x
  2. Step 2: Convert to fraction form
    28,514.17/39,325.93 = 21,462.31/x
  3. Step 3: Cross multiply
    28,514.17x = 39,325.93 × 21,462.31
  4. Step 4: Simplify right side
    28,514.17x = 844,025,300.70
  5. Step 5: Solve for x
    x = 844,025,300.70/28,514.17
  6. Step 6: Final answer
    x = 29,600.21

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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.