Home / 28,511.59-42,769.14-10,981.44

Finding the Fourth Proportional to 28,511.59, 42,769.14 and 10,981.44

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Solution

The fourth proportional to 28,511.59, 42,769.14 and 10,981.44 is: 16,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.59 : 42,769.14 = 10,981.44 : x
  2. Step 2: Convert to fraction form
    28,511.59/42,769.14 = 10,981.44/x
  3. Step 3: Cross multiply
    28,511.59x = 42,769.14 × 10,981.44
  4. Step 4: Simplify right side
    28,511.59x = 469,666,744.76
  5. Step 5: Solve for x
    x = 469,666,744.76/28,511.59
  6. Step 6: Final answer
    x = 16,472.84

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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.