Home / 21,344.40-31,943.70-19,594.80

Finding the Fourth Proportional to 21,344.40, 31,943.70 and 19,594.80

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Solution

The fourth proportional to 21,344.40, 31,943.70 and 19,594.80 is: 29,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.40 : 31,943.70 = 19,594.80 : x
  2. Step 2: Convert to fraction form
    21,344.40/31,943.70 = 19,594.80/x
  3. Step 3: Cross multiply
    21,344.40x = 31,943.70 × 19,594.80
  4. Step 4: Simplify right side
    21,344.40x = 625,930,412.76
  5. Step 5: Solve for x
    x = 625,930,412.76/21,344.40
  6. Step 6: Final answer
    x = 29,325.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.