Home / 27,588.48-38,071.68-15,013.20

Finding the Fourth Proportional to 27,588.48, 38,071.68 and 15,013.20

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Solution

The fourth proportional to 27,588.48, 38,071.68 and 15,013.20 is: 20,717.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,588.48 : 38,071.68 = 15,013.20 : x
  2. Step 2: Convert to fraction form
    27,588.48/38,071.68 = 15,013.20/x
  3. Step 3: Cross multiply
    27,588.48x = 38,071.68 × 15,013.20
  4. Step 4: Simplify right side
    27,588.48x = 571,577,746.18
  5. Step 5: Solve for x
    x = 571,577,746.18/27,588.48
  6. Step 6: Final answer
    x = 20,717.99

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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.