Home / 28,913.09-39,922.67-22,188.06

Finding the Fourth Proportional to 28,913.09, 39,922.67 and 22,188.06

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Solution

The fourth proportional to 28,913.09, 39,922.67 and 22,188.06 is: 30,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.09 : 39,922.67 = 22,188.06 : x
  2. Step 2: Convert to fraction form
    28,913.09/39,922.67 = 22,188.06/x
  3. Step 3: Cross multiply
    28,913.09x = 39,922.67 × 22,188.06
  4. Step 4: Simplify right side
    28,913.09x = 885,806,652.79
  5. Step 5: Solve for x
    x = 885,806,652.79/28,913.09
  6. Step 6: Final answer
    x = 30,636.88

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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.