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Finding the Fourth Proportional to 40,376.49, 55,719.12 and 22,471.20

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Solution

The fourth proportional to 40,376.49, 55,719.12 and 22,471.20 is: 31,010.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,376.49 : 55,719.12 = 22,471.20 : x
  2. Step 2: Convert to fraction form
    40,376.49/55,719.12 = 22,471.20/x
  3. Step 3: Cross multiply
    40,376.49x = 55,719.12 × 22,471.20
  4. Step 4: Simplify right side
    40,376.49x = 1,252,075,489.34
  5. Step 5: Solve for x
    x = 1,252,075,489.34/40,376.49
  6. Step 6: Final answer
    x = 31,010.01

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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.