Home / 27,981.06-38,535.59-23,221.50

Finding the Fourth Proportional to 27,981.06, 38,535.59 and 23,221.50

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Solution

The fourth proportional to 27,981.06, 38,535.59 and 23,221.50 is: 31,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.06 : 38,535.59 = 23,221.50 : x
  2. Step 2: Convert to fraction form
    27,981.06/38,535.59 = 23,221.50/x
  3. Step 3: Cross multiply
    27,981.06x = 38,535.59 × 23,221.50
  4. Step 4: Simplify right side
    27,981.06x = 894,854,087.08
  5. Step 5: Solve for x
    x = 894,854,087.08/27,981.06
  6. Step 6: Final answer
    x = 31,980.71

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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.