Home / 28,545.68-42,818.52-11,913.55

Finding the Fourth Proportional to 28,545.68, 42,818.52 and 11,913.55

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Solution

The fourth proportional to 28,545.68, 42,818.52 and 11,913.55 is: 17,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.68 : 42,818.52 = 11,913.55 : x
  2. Step 2: Convert to fraction form
    28,545.68/42,818.52 = 11,913.55/x
  3. Step 3: Cross multiply
    28,545.68x = 42,818.52 × 11,913.55
  4. Step 4: Simplify right side
    28,545.68x = 510,120,516.58
  5. Step 5: Solve for x
    x = 510,120,516.58/28,545.68
  6. Step 6: Final answer
    x = 17,870.32

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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.