Home / 40,000.67-55,200.95-21,851.64

Finding the Fourth Proportional to 40,000.67, 55,200.95 and 21,851.64

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Solution

The fourth proportional to 40,000.67, 55,200.95 and 21,851.64 is: 30,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,000.67 : 55,200.95 = 21,851.64 : x
  2. Step 2: Convert to fraction form
    40,000.67/55,200.95 = 21,851.64/x
  3. Step 3: Cross multiply
    40,000.67x = 55,200.95 × 21,851.64
  4. Step 4: Simplify right side
    40,000.67x = 1,206,231,287.06
  5. Step 5: Solve for x
    x = 1,206,231,287.06/40,000.67
  6. Step 6: Final answer
    x = 30,155.28

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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.