Home / 27,897.81-38,498.75-15,151.33

Finding the Fourth Proportional to 27,897.81, 38,498.75 and 15,151.33

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Solution

The fourth proportional to 27,897.81, 38,498.75 and 15,151.33 is: 20,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,897.81 : 38,498.75 = 15,151.33 : x
  2. Step 2: Convert to fraction form
    27,897.81/38,498.75 = 15,151.33/x
  3. Step 3: Cross multiply
    27,897.81x = 38,498.75 × 15,151.33
  4. Step 4: Simplify right side
    27,897.81x = 583,306,997.59
  5. Step 5: Solve for x
    x = 583,306,997.59/27,897.81
  6. Step 6: Final answer
    x = 20,908.70

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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.