Home / 20,946.24-28,877.04-15,269.76

Finding the Fourth Proportional to 20,946.24, 28,877.04 and 15,269.76

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Solution

The fourth proportional to 20,946.24, 28,877.04 and 15,269.76 is: 21,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.24 : 28,877.04 = 15,269.76 : x
  2. Step 2: Convert to fraction form
    20,946.24/28,877.04 = 15,269.76/x
  3. Step 3: Cross multiply
    20,946.24x = 28,877.04 × 15,269.76
  4. Step 4: Simplify right side
    20,946.24x = 440,945,470.31
  5. Step 5: Solve for x
    x = 440,945,470.31/20,946.24
  6. Step 6: Final answer
    x = 21,051.29

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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.