Home / 25,766.56-38,675.76-18,820

Finding the Fourth Proportional to 25,766.56, 38,675.76 and 18,820

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Solution

The fourth proportional to 25,766.56, 38,675.76 and 18,820 is: 28,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,766.56 : 38,675.76 = 18,820 : x
  2. Step 2: Convert to fraction form
    25,766.56/38,675.76 = 18,820/x
  3. Step 3: Cross multiply
    25,766.56x = 38,675.76 × 18,820
  4. Step 4: Simplify right side
    25,766.56x = 727,877,803.20
  5. Step 5: Solve for x
    x = 727,877,803.20/25,766.56
  6. Step 6: Final answer
    x = 28,248.93

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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.