Home / 20,743,828.52-28,626,942-11,451,377.12

Finding the Fourth Proportional to 20,743,828.52, 28,626,942 and 11,451,377.12

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Solution

The fourth proportional to 20,743,828.52, 28,626,942 and 11,451,377.12 is: 15,803,153.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,828.52 : 28,626,942 = 11,451,377.12 : x
  2. Step 2: Convert to fraction form
    20,743,828.52/28,626,942 = 11,451,377.12/x
  3. Step 3: Cross multiply
    20,743,828.52x = 28,626,942 × 11,451,377.12
  4. Step 4: Simplify right side
    20,743,828.52x = 327,817,908,634,367
  5. Step 5: Solve for x
    x = 327,817,908,634,367/20,743,828.52
  6. Step 6: Final answer
    x = 15,803,153.61

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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.