Home / 25,404.60-38,108.10-7,886.70

Finding the Fourth Proportional to 25,404.60, 38,108.10 and 7,886.70

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Solution

The fourth proportional to 25,404.60, 38,108.10 and 7,886.70 is: 11,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,404.60 : 38,108.10 = 7,886.70 : x
  2. Step 2: Convert to fraction form
    25,404.60/38,108.10 = 7,886.70/x
  3. Step 3: Cross multiply
    25,404.60x = 38,108.10 × 7,886.70
  4. Step 4: Simplify right side
    25,404.60x = 300,547,152.27
  5. Step 5: Solve for x
    x = 300,547,152.27/25,404.60
  6. Step 6: Final answer
    x = 11,830.42

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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.