Home / 28,341.17-42,511.76-8,619.75

Finding the Fourth Proportional to 28,341.17, 42,511.76 and 8,619.75

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Solution

The fourth proportional to 28,341.17, 42,511.76 and 8,619.75 is: 12,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.17 : 42,511.76 = 8,619.75 : x
  2. Step 2: Convert to fraction form
    28,341.17/42,511.76 = 8,619.75/x
  3. Step 3: Cross multiply
    28,341.17x = 42,511.76 × 8,619.75
  4. Step 4: Simplify right side
    28,341.17x = 366,440,756.73
  5. Step 5: Solve for x
    x = 366,440,756.73/28,341.17
  6. Step 6: Final answer
    x = 12,929.63

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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.