Home / 27,991.13-38,627.93-15,416.69

Finding the Fourth Proportional to 27,991.13, 38,627.93 and 15,416.69

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Solution

The fourth proportional to 27,991.13, 38,627.93 and 15,416.69 is: 21,275.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991.13 : 38,627.93 = 15,416.69 : x
  2. Step 2: Convert to fraction form
    27,991.13/38,627.93 = 15,416.69/x
  3. Step 3: Cross multiply
    27,991.13x = 38,627.93 × 15,416.69
  4. Step 4: Simplify right side
    27,991.13x = 595,514,667.55
  5. Step 5: Solve for x
    x = 595,514,667.55/27,991.13
  6. Step 6: Final answer
    x = 21,275.12

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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.