Home / 32,138.72-44,340.02-20,941.28

Finding the Fourth Proportional to 32,138.72, 44,340.02 and 20,941.28

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Solution

The fourth proportional to 32,138.72, 44,340.02 and 20,941.28 is: 28,891.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,138.72 : 44,340.02 = 20,941.28 : x
  2. Step 2: Convert to fraction form
    32,138.72/44,340.02 = 20,941.28/x
  3. Step 3: Cross multiply
    32,138.72x = 44,340.02 × 20,941.28
  4. Step 4: Simplify right side
    32,138.72x = 928,536,774.03
  5. Step 5: Solve for x
    x = 928,536,774.03/32,138.72
  6. Step 6: Final answer
    x = 28,891.53

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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.