Home / 20,559.19-28,366.86-12,060.87

Finding the Fourth Proportional to 20,559.19, 28,366.86 and 12,060.87

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Solution

The fourth proportional to 20,559.19, 28,366.86 and 12,060.87 is: 16,641.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.19 : 28,366.86 = 12,060.87 : x
  2. Step 2: Convert to fraction form
    20,559.19/28,366.86 = 12,060.87/x
  3. Step 3: Cross multiply
    20,559.19x = 28,366.86 × 12,060.87
  4. Step 4: Simplify right side
    20,559.19x = 342,129,010.77
  5. Step 5: Solve for x
    x = 342,129,010.77/20,559.19
  6. Step 6: Final answer
    x = 16,641.17

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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.