Home / 27,823.72-38,397.78-15,887.16

Finding the Fourth Proportional to 27,823.72, 38,397.78 and 15,887.16

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Solution

The fourth proportional to 27,823.72, 38,397.78 and 15,887.16 is: 21,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,823.72 : 38,397.78 = 15,887.16 : x
  2. Step 2: Convert to fraction form
    27,823.72/38,397.78 = 15,887.16/x
  3. Step 3: Cross multiply
    27,823.72x = 38,397.78 × 15,887.16
  4. Step 4: Simplify right side
    27,823.72x = 610,031,674.50
  5. Step 5: Solve for x
    x = 610,031,674.50/27,823.72
  6. Step 6: Final answer
    x = 21,924.88

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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.