Home / 40,392.64-55,733.28-25,480

Finding the Fourth Proportional to 40,392.64, 55,733.28 and 25,480

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Solution

The fourth proportional to 40,392.64, 55,733.28 and 25,480 is: 35,157.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,392.64 : 55,733.28 = 25,480 : x
  2. Step 2: Convert to fraction form
    40,392.64/55,733.28 = 25,480/x
  3. Step 3: Cross multiply
    40,392.64x = 55,733.28 × 25,480
  4. Step 4: Simplify right side
    40,392.64x = 1,420,083,974.40
  5. Step 5: Solve for x
    x = 1,420,083,974.40/40,392.64
  6. Step 6: Final answer
    x = 35,157.00

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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.