Home / 40,319.72-55,650.02-22,420.84

Finding the Fourth Proportional to 40,319.72, 55,650.02 and 22,420.84

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Solution

The fourth proportional to 40,319.72, 55,650.02 and 22,420.84 is: 30,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,319.72 : 55,650.02 = 22,420.84 : x
  2. Step 2: Convert to fraction form
    40,319.72/55,650.02 = 22,420.84/x
  3. Step 3: Cross multiply
    40,319.72x = 55,650.02 × 22,420.84
  4. Step 4: Simplify right side
    40,319.72x = 1,247,720,194.42
  5. Step 5: Solve for x
    x = 1,247,720,194.42/40,319.72
  6. Step 6: Final answer
    x = 30,945.66

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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.