Home / 21,237.16-29,307.48-11,677.54

Finding the Fourth Proportional to 21,237.16, 29,307.48 and 11,677.54

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Solution

The fourth proportional to 21,237.16, 29,307.48 and 11,677.54 is: 16,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.16 : 29,307.48 = 11,677.54 : x
  2. Step 2: Convert to fraction form
    21,237.16/29,307.48 = 11,677.54/x
  3. Step 3: Cross multiply
    21,237.16x = 29,307.48 × 11,677.54
  4. Step 4: Simplify right side
    21,237.16x = 342,239,270.00
  5. Step 5: Solve for x
    x = 342,239,270.00/21,237.16
  6. Step 6: Final answer
    x = 16,115.11

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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.