Home / 28,506.57-39,340.17-18,929.94

Finding the Fourth Proportional to 28,506.57, 39,340.17 and 18,929.94

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Solution

The fourth proportional to 28,506.57, 39,340.17 and 18,929.94 is: 26,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.57 : 39,340.17 = 18,929.94 : x
  2. Step 2: Convert to fraction form
    28,506.57/39,340.17 = 18,929.94/x
  3. Step 3: Cross multiply
    28,506.57x = 39,340.17 × 18,929.94
  4. Step 4: Simplify right side
    28,506.57x = 744,706,766.34
  5. Step 5: Solve for x
    x = 744,706,766.34/28,506.57
  6. Step 6: Final answer
    x = 26,124.04

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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.