Home / 25,775.60-38,657.25-18,837.35

Finding the Fourth Proportional to 25,775.60, 38,657.25 and 18,837.35

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Solution

The fourth proportional to 25,775.60, 38,657.25 and 18,837.35 is: 28,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,775.60 : 38,657.25 = 18,837.35 : x
  2. Step 2: Convert to fraction form
    25,775.60/38,657.25 = 18,837.35/x
  3. Step 3: Cross multiply
    25,775.60x = 38,657.25 × 18,837.35
  4. Step 4: Simplify right side
    25,775.60x = 728,199,955.00
  5. Step 5: Solve for x
    x = 728,199,955.00/25,775.60
  6. Step 6: Final answer
    x = 28,251.53

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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.