Home / 25,981.60-35,866.56-15,225.04

Finding the Fourth Proportional to 25,981.60, 35,866.56 and 15,225.04

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Solution

The fourth proportional to 25,981.60, 35,866.56 and 15,225.04 is: 21,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.60 : 35,866.56 = 15,225.04 : x
  2. Step 2: Convert to fraction form
    25,981.60/35,866.56 = 15,225.04/x
  3. Step 3: Cross multiply
    25,981.60x = 35,866.56 × 15,225.04
  4. Step 4: Simplify right side
    25,981.60x = 546,069,810.66
  5. Step 5: Solve for x
    x = 546,069,810.66/25,981.60
  6. Step 6: Final answer
    x = 21,017.56

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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.