Home / 27,956.28-38,580.40-15,210.26

Finding the Fourth Proportional to 27,956.28, 38,580.40 and 15,210.26

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Solution

The fourth proportional to 27,956.28, 38,580.40 and 15,210.26 is: 20,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.28 : 38,580.40 = 15,210.26 : x
  2. Step 2: Convert to fraction form
    27,956.28/38,580.40 = 15,210.26/x
  3. Step 3: Cross multiply
    27,956.28x = 38,580.40 × 15,210.26
  4. Step 4: Simplify right side
    27,956.28x = 586,817,914.90
  5. Step 5: Solve for x
    x = 586,817,914.90/27,956.28
  6. Step 6: Final answer
    x = 20,990.56

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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.