Home / 21,123.93-29,150.57-11,563.57

Finding the Fourth Proportional to 21,123.93, 29,150.57 and 11,563.57

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Solution

The fourth proportional to 21,123.93, 29,150.57 and 11,563.57 is: 15,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,123.93 : 29,150.57 = 11,563.57 : x
  2. Step 2: Convert to fraction form
    21,123.93/29,150.57 = 11,563.57/x
  3. Step 3: Cross multiply
    21,123.93x = 29,150.57 × 11,563.57
  4. Step 4: Simplify right side
    21,123.93x = 337,084,612.77
  5. Step 5: Solve for x
    x = 337,084,612.77/21,123.93
  6. Step 6: Final answer
    x = 15,957.48

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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.