Home / 20,599.18-28,426.62-11,167.63

Finding the Fourth Proportional to 20,599.18, 28,426.62 and 11,167.63

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Solution

The fourth proportional to 20,599.18, 28,426.62 and 11,167.63 is: 15,411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.18 : 28,426.62 = 11,167.63 : x
  2. Step 2: Convert to fraction form
    20,599.18/28,426.62 = 11,167.63/x
  3. Step 3: Cross multiply
    20,599.18x = 28,426.62 × 11,167.63
  4. Step 4: Simplify right side
    20,599.18x = 317,457,974.31
  5. Step 5: Solve for x
    x = 317,457,974.31/20,599.18
  6. Step 6: Final answer
    x = 15,411.19

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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.