Home / 19,142.64-28,700.10-5,987.88

Finding the Fourth Proportional to 19,142.64, 28,700.10 and 5,987.88

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Solution

The fourth proportional to 19,142.64, 28,700.10 and 5,987.88 is: 8,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.64 : 28,700.10 = 5,987.88 : x
  2. Step 2: Convert to fraction form
    19,142.64/28,700.10 = 5,987.88/x
  3. Step 3: Cross multiply
    19,142.64x = 28,700.10 × 5,987.88
  4. Step 4: Simplify right side
    19,142.64x = 171,852,754.79
  5. Step 5: Solve for x
    x = 171,852,754.79/19,142.64
  6. Step 6: Final answer
    x = 8,977.48

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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.