Home / 20,410.24-28,178.40-13,348.48

Finding the Fourth Proportional to 20,410.24, 28,178.40 and 13,348.48

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Solution

The fourth proportional to 20,410.24, 28,178.40 and 13,348.48 is: 18,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.24 : 28,178.40 = 13,348.48 : x
  2. Step 2: Convert to fraction form
    20,410.24/28,178.40 = 13,348.48/x
  3. Step 3: Cross multiply
    20,410.24x = 28,178.40 × 13,348.48
  4. Step 4: Simplify right side
    20,410.24x = 376,138,808.83
  5. Step 5: Solve for x
    x = 376,138,808.83/20,410.24
  6. Step 6: Final answer
    x = 18,428.93

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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.