Home / 55,275.24-82,937.16-20,220.12

Finding the Fourth Proportional to 55,275.24, 82,937.16 and 20,220.12

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Solution

The fourth proportional to 55,275.24, 82,937.16 and 20,220.12 is: 30,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.24 : 82,937.16 = 20,220.12 : x
  2. Step 2: Convert to fraction form
    55,275.24/82,937.16 = 20,220.12/x
  3. Step 3: Cross multiply
    55,275.24x = 82,937.16 × 20,220.12
  4. Step 4: Simplify right side
    55,275.24x = 1,676,999,327.66
  5. Step 5: Solve for x
    x = 1,676,999,327.66/55,275.24
  6. Step 6: Final answer
    x = 30,339.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.