Home / 28,963.31-39,988.64-22,236.92

Finding the Fourth Proportional to 28,963.31, 39,988.64 and 22,236.92

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Solution

The fourth proportional to 28,963.31, 39,988.64 and 22,236.92 is: 30,701.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.31 : 39,988.64 = 22,236.92 : x
  2. Step 2: Convert to fraction form
    28,963.31/39,988.64 = 22,236.92/x
  3. Step 3: Cross multiply
    28,963.31x = 39,988.64 × 22,236.92
  4. Step 4: Simplify right side
    28,963.31x = 889,223,877.46
  5. Step 5: Solve for x
    x = 889,223,877.46/28,963.31
  6. Step 6: Final answer
    x = 30,701.74

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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.