Home / 22,572.40-31,117.45-15,837.16

Finding the Fourth Proportional to 22,572.40, 31,117.45 and 15,837.16

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Solution

The fourth proportional to 22,572.40, 31,117.45 and 15,837.16 is: 21,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,572.40 : 31,117.45 = 15,837.16 : x
  2. Step 2: Convert to fraction form
    22,572.40/31,117.45 = 15,837.16/x
  3. Step 3: Cross multiply
    22,572.40x = 31,117.45 × 15,837.16
  4. Step 4: Simplify right side
    22,572.40x = 492,812,034.44
  5. Step 5: Solve for x
    x = 492,812,034.44/22,572.40
  6. Step 6: Final answer
    x = 21,832.50

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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.