Home / 25,820.06-38,726.42-8,287.62

Finding the Fourth Proportional to 25,820.06, 38,726.42 and 8,287.62

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Solution

The fourth proportional to 25,820.06, 38,726.42 and 8,287.62 is: 12,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,820.06 : 38,726.42 = 8,287.62 : x
  2. Step 2: Convert to fraction form
    25,820.06/38,726.42 = 8,287.62/x
  3. Step 3: Cross multiply
    25,820.06x = 38,726.42 × 8,287.62
  4. Step 4: Simplify right side
    25,820.06x = 320,949,852.92
  5. Step 5: Solve for x
    x = 320,949,852.92/25,820.06
  6. Step 6: Final answer
    x = 12,430.25

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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.