Home / 25,932.79-35,787.96-15,861.05

Finding the Fourth Proportional to 25,932.79, 35,787.96 and 15,861.05

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Solution

The fourth proportional to 25,932.79, 35,787.96 and 15,861.05 is: 21,888.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,932.79 : 35,787.96 = 15,861.05 : x
  2. Step 2: Convert to fraction form
    25,932.79/35,787.96 = 15,861.05/x
  3. Step 3: Cross multiply
    25,932.79x = 35,787.96 × 15,861.05
  4. Step 4: Simplify right side
    25,932.79x = 567,634,364.71
  5. Step 5: Solve for x
    x = 567,634,364.71/25,932.79
  6. Step 6: Final answer
    x = 21,888.68

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1.5x scale

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.