Home / 21,225.96-31,848.51-8,754.59

Finding the Fourth Proportional to 21,225.96, 31,848.51 and 8,754.59

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Solution

The fourth proportional to 21,225.96, 31,848.51 and 8,754.59 is: 13,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.96 : 31,848.51 = 8,754.59 : x
  2. Step 2: Convert to fraction form
    21,225.96/31,848.51 = 8,754.59/x
  3. Step 3: Cross multiply
    21,225.96x = 31,848.51 × 8,754.59
  4. Step 4: Simplify right side
    21,225.96x = 278,820,759.61
  5. Step 5: Solve for x
    x = 278,820,759.61/21,225.96
  6. Step 6: Final answer
    x = 13,135.84

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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.