Home / 25,565.90-38,354.36-12,750.07

Finding the Fourth Proportional to 25,565.90, 38,354.36 and 12,750.07

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Solution

The fourth proportional to 25,565.90, 38,354.36 and 12,750.07 is: 19,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.90 : 38,354.36 = 12,750.07 : x
  2. Step 2: Convert to fraction form
    25,565.90/38,354.36 = 12,750.07/x
  3. Step 3: Cross multiply
    25,565.90x = 38,354.36 × 12,750.07
  4. Step 4: Simplify right side
    25,565.90x = 489,020,774.81
  5. Step 5: Solve for x
    x = 489,020,774.81/25,565.90
  6. Step 6: Final answer
    x = 19,127.85

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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.