Home / 28,684.24-39,585.12-17,355.81

Finding the Fourth Proportional to 28,684.24, 39,585.12 and 17,355.81

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Solution

The fourth proportional to 28,684.24, 39,585.12 and 17,355.81 is: 23,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684.24 : 39,585.12 = 17,355.81 : x
  2. Step 2: Convert to fraction form
    28,684.24/39,585.12 = 17,355.81/x
  3. Step 3: Cross multiply
    28,684.24x = 39,585.12 × 17,355.81
  4. Step 4: Simplify right side
    28,684.24x = 687,031,821.55
  5. Step 5: Solve for x
    x = 687,031,821.55/28,684.24
  6. Step 6: Final answer
    x = 23,951.55

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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.