Home / 22,400.60-30,875.09-15,314.72

Finding the Fourth Proportional to 22,400.60, 30,875.09 and 15,314.72

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Solution

The fourth proportional to 22,400.60, 30,875.09 and 15,314.72 is: 21,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,400.60 : 30,875.09 = 15,314.72 : x
  2. Step 2: Convert to fraction form
    22,400.60/30,875.09 = 15,314.72/x
  3. Step 3: Cross multiply
    22,400.60x = 30,875.09 × 15,314.72
  4. Step 4: Simplify right side
    22,400.60x = 472,843,127.38
  5. Step 5: Solve for x
    x = 472,843,127.38/22,400.60
  6. Step 6: Final answer
    x = 21,108.51

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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.