Home / 25,578.16-38,295.10-13,543.04

Finding the Fourth Proportional to 25,578.16, 38,295.10 and 13,543.04

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Solution

The fourth proportional to 25,578.16, 38,295.10 and 13,543.04 is: 20,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,578.16 : 38,295.10 = 13,543.04 : x
  2. Step 2: Convert to fraction form
    25,578.16/38,295.10 = 13,543.04/x
  3. Step 3: Cross multiply
    25,578.16x = 38,295.10 × 13,543.04
  4. Step 4: Simplify right side
    25,578.16x = 518,632,071.10
  5. Step 5: Solve for x
    x = 518,632,071.10/25,578.16
  6. Step 6: Final answer
    x = 20,276.36

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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.