Home / 27,588.64-38,072.28-15,013.12

Finding the Fourth Proportional to 27,588.64, 38,072.28 and 15,013.12

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Solution

The fourth proportional to 27,588.64, 38,072.28 and 15,013.12 is: 20,718.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,588.64 : 38,072.28 = 15,013.12 : x
  2. Step 2: Convert to fraction form
    27,588.64/38,072.28 = 15,013.12/x
  3. Step 3: Cross multiply
    27,588.64x = 38,072.28 × 15,013.12
  4. Step 4: Simplify right side
    27,588.64x = 571,583,708.31
  5. Step 5: Solve for x
    x = 571,583,708.31/27,588.64
  6. Step 6: Final answer
    x = 20,718.08

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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.