Home / 25,430.76-38,145.33-7,895.88

Finding the Fourth Proportional to 25,430.76, 38,145.33 and 7,895.88

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Solution

The fourth proportional to 25,430.76, 38,145.33 and 7,895.88 is: 11,843.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.76 : 38,145.33 = 7,895.88 : x
  2. Step 2: Convert to fraction form
    25,430.76/38,145.33 = 7,895.88/x
  3. Step 3: Cross multiply
    25,430.76x = 38,145.33 × 7,895.88
  4. Step 4: Simplify right side
    25,430.76x = 301,190,948.24
  5. Step 5: Solve for x
    x = 301,190,948.24/25,430.76
  6. Step 6: Final answer
    x = 11,843.57

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1.5x scale

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.