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Finding the Fourth Proportional to 40,792, 56,292.16 and 22,886.88

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Solution

The fourth proportional to 40,792, 56,292.16 and 22,886.88 is: 31,583.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,792 : 56,292.16 = 22,886.88 : x
  2. Step 2: Convert to fraction form
    40,792/56,292.16 = 22,886.88/x
  3. Step 3: Cross multiply
    40,792x = 56,292.16 × 22,886.88
  4. Step 4: Simplify right side
    40,792x = 1,288,351,910.86
  5. Step 5: Solve for x
    x = 1,288,351,910.86/40,792
  6. Step 6: Final answer
    x = 31,583.45

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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.