Home / 55,233.04-82,859.28-20,221.60

Finding the Fourth Proportional to 55,233.04, 82,859.28 and 20,221.60

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Solution

The fourth proportional to 55,233.04, 82,859.28 and 20,221.60 is: 30,335.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,233.04 : 82,859.28 = 20,221.60 : x
  2. Step 2: Convert to fraction form
    55,233.04/82,859.28 = 20,221.60/x
  3. Step 3: Cross multiply
    55,233.04x = 82,859.28 × 20,221.60
  4. Step 4: Simplify right side
    55,233.04x = 1,675,547,216.45
  5. Step 5: Solve for x
    x = 1,675,547,216.45/55,233.04
  6. Step 6: Final answer
    x = 30,335.96

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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.