Home / 25,868.58-38,779.92-15,312.66

Finding the Fourth Proportional to 25,868.58, 38,779.92 and 15,312.66

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Solution

The fourth proportional to 25,868.58, 38,779.92 and 15,312.66 is: 22,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,868.58 : 38,779.92 = 15,312.66 : x
  2. Step 2: Convert to fraction form
    25,868.58/38,779.92 = 15,312.66/x
  3. Step 3: Cross multiply
    25,868.58x = 38,779.92 × 15,312.66
  4. Step 4: Simplify right side
    25,868.58x = 593,823,729.79
  5. Step 5: Solve for x
    x = 593,823,729.79/25,868.58
  6. Step 6: Final answer
    x = 22,955.40

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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.