Home / 21,292.24-31,938.36-9,893.02

Finding the Fourth Proportional to 21,292.24, 31,938.36 and 9,893.02

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Solution

The fourth proportional to 21,292.24, 31,938.36 and 9,893.02 is: 14,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.24 : 31,938.36 = 9,893.02 : x
  2. Step 2: Convert to fraction form
    21,292.24/31,938.36 = 9,893.02/x
  3. Step 3: Cross multiply
    21,292.24x = 31,938.36 × 9,893.02
  4. Step 4: Simplify right side
    21,292.24x = 315,966,834.25
  5. Step 5: Solve for x
    x = 315,966,834.25/21,292.24
  6. Step 6: Final answer
    x = 14,839.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.