Home / 31,056.90-42,867.27-27,995.10

Finding the Fourth Proportional to 31,056.90, 42,867.27 and 27,995.10

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Solution

The fourth proportional to 31,056.90, 42,867.27 and 27,995.10 is: 38,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056.90 : 42,867.27 = 27,995.10 : x
  2. Step 2: Convert to fraction form
    31,056.90/42,867.27 = 27,995.10/x
  3. Step 3: Cross multiply
    31,056.90x = 42,867.27 × 27,995.10
  4. Step 4: Simplify right side
    31,056.90x = 1,200,073,510.38
  5. Step 5: Solve for x
    x = 1,200,073,510.38/31,056.90
  6. Step 6: Final answer
    x = 38,641.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.