Home / 21,541.80-29,750.34-19,193.65

Finding the Fourth Proportional to 21,541.80, 29,750.34 and 19,193.65

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Solution

The fourth proportional to 21,541.80, 29,750.34 and 19,193.65 is: 26,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,541.80 : 29,750.34 = 19,193.65 : x
  2. Step 2: Convert to fraction form
    21,541.80/29,750.34 = 19,193.65/x
  3. Step 3: Cross multiply
    21,541.80x = 29,750.34 × 19,193.65
  4. Step 4: Simplify right side
    21,541.80x = 571,017,613.34
  5. Step 5: Solve for x
    x = 571,017,613.34/21,541.80
  6. Step 6: Final answer
    x = 26,507.43

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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.