Home / 55,941.28-83,862.24-20,857.12

Finding the Fourth Proportional to 55,941.28, 83,862.24 and 20,857.12

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Solution

The fourth proportional to 55,941.28, 83,862.24 and 20,857.12 is: 31,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,941.28 : 83,862.24 = 20,857.12 : x
  2. Step 2: Convert to fraction form
    55,941.28/83,862.24 = 20,857.12/x
  3. Step 3: Cross multiply
    55,941.28x = 83,862.24 × 20,857.12
  4. Step 4: Simplify right side
    55,941.28x = 1,749,124,803.15
  5. Step 5: Solve for x
    x = 1,749,124,803.15/55,941.28
  6. Step 6: Final answer
    x = 31,267.16

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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.