Home / 21,565.36-29,601.20-19,154.80

Finding the Fourth Proportional to 21,565.36, 29,601.20 and 19,154.80

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Solution

The fourth proportional to 21,565.36, 29,601.20 and 19,154.80 is: 26,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.36 : 29,601.20 = 19,154.80 : x
  2. Step 2: Convert to fraction form
    21,565.36/29,601.20 = 19,154.80/x
  3. Step 3: Cross multiply
    21,565.36x = 29,601.20 × 19,154.80
  4. Step 4: Simplify right side
    21,565.36x = 567,004,895.98
  5. Step 5: Solve for x
    x = 567,004,895.98/21,565.36
  6. Step 6: Final answer
    x = 26,292.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.