Home / 20,151.76-30,091.85-16,461.28

Finding the Fourth Proportional to 20,151.76, 30,091.85 and 16,461.28

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Solution

The fourth proportional to 20,151.76, 30,091.85 and 16,461.28 is: 24,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.76 : 30,091.85 = 16,461.28 : x
  2. Step 2: Convert to fraction form
    20,151.76/30,091.85 = 16,461.28/x
  3. Step 3: Cross multiply
    20,151.76x = 30,091.85 × 16,461.28
  4. Step 4: Simplify right side
    20,151.76x = 495,350,368.57
  5. Step 5: Solve for x
    x = 495,350,368.57/20,151.76
  6. Step 6: Final answer
    x = 24,581.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.