Home / 31,968.10-47,952.15-28,080.10

Finding the Fourth Proportional to 31,968.10, 47,952.15 and 28,080.10

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Solution

The fourth proportional to 31,968.10, 47,952.15 and 28,080.10 is: 42,120.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,968.10 : 47,952.15 = 28,080.10 : x
  2. Step 2: Convert to fraction form
    31,968.10/47,952.15 = 28,080.10/x
  3. Step 3: Cross multiply
    31,968.10x = 47,952.15 × 28,080.10
  4. Step 4: Simplify right side
    31,968.10x = 1,346,501,167.22
  5. Step 5: Solve for x
    x = 1,346,501,167.22/31,968.10
  6. Step 6: Final answer
    x = 42,120.15

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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.