Home / 27,015.40-40,510.12-12,772.04

Finding the Fourth Proportional to 27,015.40, 40,510.12 and 12,772.04

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Solution

The fourth proportional to 27,015.40, 40,510.12 and 12,772.04 is: 19,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.40 : 40,510.12 = 12,772.04 : x
  2. Step 2: Convert to fraction form
    27,015.40/40,510.12 = 12,772.04/x
  3. Step 3: Cross multiply
    27,015.40x = 40,510.12 × 12,772.04
  4. Step 4: Simplify right side
    27,015.40x = 517,396,873.04
  5. Step 5: Solve for x
    x = 517,396,873.04/27,015.40
  6. Step 6: Final answer
    x = 19,151.92

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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.