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Finding the Fourth Proportional to 40,258.61, 55,557 and 22,353.66

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Solution

The fourth proportional to 40,258.61, 55,557 and 22,353.66 is: 30,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,258.61 : 55,557 = 22,353.66 : x
  2. Step 2: Convert to fraction form
    40,258.61/55,557 = 22,353.66/x
  3. Step 3: Cross multiply
    40,258.61x = 55,557 × 22,353.66
  4. Step 4: Simplify right side
    40,258.61x = 1,241,902,288.62
  5. Step 5: Solve for x
    x = 1,241,902,288.62/40,258.61
  6. Step 6: Final answer
    x = 30,848.12

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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.