Home / 21,938.52-30,275.18-11,866.93

Finding the Fourth Proportional to 21,938.52, 30,275.18 and 11,866.93

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Solution

The fourth proportional to 21,938.52, 30,275.18 and 11,866.93 is: 16,376.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,938.52 : 30,275.18 = 11,866.93 : x
  2. Step 2: Convert to fraction form
    21,938.52/30,275.18 = 11,866.93/x
  3. Step 3: Cross multiply
    21,938.52x = 30,275.18 × 11,866.93
  4. Step 4: Simplify right side
    21,938.52x = 359,273,453.11
  5. Step 5: Solve for x
    x = 359,273,453.11/21,938.52
  6. Step 6: Final answer
    x = 16,376.38

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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.