Home / 25,551.42-38,323.89-18,987.18

Finding the Fourth Proportional to 25,551.42, 38,323.89 and 18,987.18

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Solution

The fourth proportional to 25,551.42, 38,323.89 and 18,987.18 is: 28,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,551.42 : 38,323.89 = 18,987.18 : x
  2. Step 2: Convert to fraction form
    25,551.42/38,323.89 = 18,987.18/x
  3. Step 3: Cross multiply
    25,551.42x = 38,323.89 × 18,987.18
  4. Step 4: Simplify right side
    25,551.42x = 727,662,597.73
  5. Step 5: Solve for x
    x = 727,662,597.73/25,551.42
  6. Step 6: Final answer
    x = 28,478.36

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1.5x scale

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.