Home / 39,418.88-54,393.60-22,657.28

Finding the Fourth Proportional to 39,418.88, 54,393.60 and 22,657.28

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Solution

The fourth proportional to 39,418.88, 54,393.60 and 22,657.28 is: 31,264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,418.88 : 54,393.60 = 22,657.28 : x
  2. Step 2: Convert to fraction form
    39,418.88/54,393.60 = 22,657.28/x
  3. Step 3: Cross multiply
    39,418.88x = 54,393.60 × 22,657.28
  4. Step 4: Simplify right side
    39,418.88x = 1,232,411,025.41
  5. Step 5: Solve for x
    x = 1,232,411,025.41/39,418.88
  6. Step 6: Final answer
    x = 31,264.49

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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.