Home / 38,784.64-58,170.62-13,820.98

Finding the Fourth Proportional to 38,784.64, 58,170.62 and 13,820.98

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Solution

The fourth proportional to 38,784.64, 58,170.62 and 13,820.98 is: 20,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,784.64 : 58,170.62 = 13,820.98 : x
  2. Step 2: Convert to fraction form
    38,784.64/58,170.62 = 13,820.98/x
  3. Step 3: Cross multiply
    38,784.64x = 58,170.62 × 13,820.98
  4. Step 4: Simplify right side
    38,784.64x = 803,974,975.61
  5. Step 5: Solve for x
    x = 803,974,975.61/38,784.64
  6. Step 6: Final answer
    x = 20,729.21

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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.