Home / 25,985.60-35,856.80-14,811.20

Finding the Fourth Proportional to 25,985.60, 35,856.80 and 14,811.20

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Solution

The fourth proportional to 25,985.60, 35,856.80 and 14,811.20 is: 20,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,985.60 : 35,856.80 = 14,811.20 : x
  2. Step 2: Convert to fraction form
    25,985.60/35,856.80 = 14,811.20/x
  3. Step 3: Cross multiply
    25,985.60x = 35,856.80 × 14,811.20
  4. Step 4: Simplify right side
    25,985.60x = 531,082,236.16
  5. Step 5: Solve for x
    x = 531,082,236.16/25,985.60
  6. Step 6: Final answer
    x = 20,437.56

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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.