Home / 20,436.83-30,657.65-7,291.07

Finding the Fourth Proportional to 20,436.83, 30,657.65 and 7,291.07

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Solution

The fourth proportional to 20,436.83, 30,657.65 and 7,291.07 is: 10,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.83 : 30,657.65 = 7,291.07 : x
  2. Step 2: Convert to fraction form
    20,436.83/30,657.65 = 7,291.07/x
  3. Step 3: Cross multiply
    20,436.83x = 30,657.65 × 7,291.07
  4. Step 4: Simplify right side
    20,436.83x = 223,527,035.73
  5. Step 5: Solve for x
    x = 223,527,035.73/20,436.83
  6. Step 6: Final answer
    x = 10,937.46

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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.