Home / 21,307.73-29,403.14-12,353.72

Finding the Fourth Proportional to 21,307.73, 29,403.14 and 12,353.72

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Solution

The fourth proportional to 21,307.73, 29,403.14 and 12,353.72 is: 17,047.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307.73 : 29,403.14 = 12,353.72 : x
  2. Step 2: Convert to fraction form
    21,307.73/29,403.14 = 12,353.72/x
  3. Step 3: Cross multiply
    21,307.73x = 29,403.14 × 12,353.72
  4. Step 4: Simplify right side
    21,307.73x = 363,237,949.90
  5. Step 5: Solve for x
    x = 363,237,949.90/21,307.73
  6. Step 6: Final answer
    x = 17,047.24

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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.