Home / 21,402.20-32,263.70-19,974.98

Finding the Fourth Proportional to 21,402.20, 32,263.70 and 19,974.98

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Solution

The fourth proportional to 21,402.20, 32,263.70 and 19,974.98 is: 30,112.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.20 : 32,263.70 = 19,974.98 : x
  2. Step 2: Convert to fraction form
    21,402.20/32,263.70 = 19,974.98/x
  3. Step 3: Cross multiply
    21,402.20x = 32,263.70 × 19,974.98
  4. Step 4: Simplify right side
    21,402.20x = 644,466,762.23
  5. Step 5: Solve for x
    x = 644,466,762.23/21,402.20
  6. Step 6: Final answer
    x = 30,112.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.