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Finding the Fourth Proportional to 40,561.04, 55,971.60 and 22,655.20

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Solution

The fourth proportional to 40,561.04, 55,971.60 and 22,655.20 is: 31,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,561.04 : 55,971.60 = 22,655.20 : x
  2. Step 2: Convert to fraction form
    40,561.04/55,971.60 = 22,655.20/x
  3. Step 3: Cross multiply
    40,561.04x = 55,971.60 × 22,655.20
  4. Step 4: Simplify right side
    40,561.04x = 1,268,047,792.32
  5. Step 5: Solve for x
    x = 1,268,047,792.32/40,561.04
  6. Step 6: Final answer
    x = 31,262.70

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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.