Home / 28,820.16-43,167.60-13,997.88

Finding the Fourth Proportional to 28,820.16, 43,167.60 and 13,997.88

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Solution

The fourth proportional to 28,820.16, 43,167.60 and 13,997.88 is: 20,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.16 : 43,167.60 = 13,997.88 : x
  2. Step 2: Convert to fraction form
    28,820.16/43,167.60 = 13,997.88/x
  3. Step 3: Cross multiply
    28,820.16x = 43,167.60 × 13,997.88
  4. Step 4: Simplify right side
    28,820.16x = 604,254,884.69
  5. Step 5: Solve for x
    x = 604,254,884.69/28,820.16
  6. Step 6: Final answer
    x = 20,966.40

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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.