Home / 21,574.06-32,319.61-15,557.11

Finding the Fourth Proportional to 21,574.06, 32,319.61 and 15,557.11

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Solution

The fourth proportional to 21,574.06, 32,319.61 and 15,557.11 is: 23,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,574.06 : 32,319.61 = 15,557.11 : x
  2. Step 2: Convert to fraction form
    21,574.06/32,319.61 = 15,557.11/x
  3. Step 3: Cross multiply
    21,574.06x = 32,319.61 × 15,557.11
  4. Step 4: Simplify right side
    21,574.06x = 502,799,727.93
  5. Step 5: Solve for x
    x = 502,799,727.93/21,574.06
  6. Step 6: Final answer
    x = 23,305.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.