Home / 40,018.72-55,225.60-22,114.40

Finding the Fourth Proportional to 40,018.72, 55,225.60 and 22,114.40

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Solution

The fourth proportional to 40,018.72, 55,225.60 and 22,114.40 is: 30,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.72 : 55,225.60 = 22,114.40 : x
  2. Step 2: Convert to fraction form
    40,018.72/55,225.60 = 22,114.40/x
  3. Step 3: Cross multiply
    40,018.72x = 55,225.60 × 22,114.40
  4. Step 4: Simplify right side
    40,018.72x = 1,221,281,008.64
  5. Step 5: Solve for x
    x = 1,221,281,008.64/40,018.72
  6. Step 6: Final answer
    x = 30,517.74

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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.