Home / 27,784.92-38,343.66-15,210.36

Finding the Fourth Proportional to 27,784.92, 38,343.66 and 15,210.36

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Solution

The fourth proportional to 27,784.92, 38,343.66 and 15,210.36 is: 20,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.92 : 38,343.66 = 15,210.36 : x
  2. Step 2: Convert to fraction form
    27,784.92/38,343.66 = 15,210.36/x
  3. Step 3: Cross multiply
    27,784.92x = 38,343.66 × 15,210.36
  4. Step 4: Simplify right side
    27,784.92x = 583,220,872.32
  5. Step 5: Solve for x
    x = 583,220,872.32/27,784.92
  6. Step 6: Final answer
    x = 20,990.55

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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.