Home / 28,948.16-39,935.76-22,221.92

Finding the Fourth Proportional to 28,948.16, 39,935.76 and 22,221.92

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Solution

The fourth proportional to 28,948.16, 39,935.76 and 22,221.92 is: 30,656.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.16 : 39,935.76 = 22,221.92 : x
  2. Step 2: Convert to fraction form
    28,948.16/39,935.76 = 22,221.92/x
  3. Step 3: Cross multiply
    28,948.16x = 39,935.76 × 22,221.92
  4. Step 4: Simplify right side
    28,948.16x = 887,449,263.86
  5. Step 5: Solve for x
    x = 887,449,263.86/28,948.16
  6. Step 6: Final answer
    x = 30,656.50

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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.