Home / 27,957.06-38,580.35-15,210.09

Finding the Fourth Proportional to 27,957.06, 38,580.35 and 15,210.09

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Solution

The fourth proportional to 27,957.06, 38,580.35 and 15,210.09 is: 20,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.06 : 38,580.35 = 15,210.09 : x
  2. Step 2: Convert to fraction form
    27,957.06/38,580.35 = 15,210.09/x
  3. Step 3: Cross multiply
    27,957.06x = 38,580.35 × 15,210.09
  4. Step 4: Simplify right side
    27,957.06x = 586,810,659.49
  5. Step 5: Solve for x
    x = 586,810,659.49/27,957.06
  6. Step 6: Final answer
    x = 20,989.72

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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.