Home / 21,929.40-32,933.70-19,207.80

Finding the Fourth Proportional to 21,929.40, 32,933.70 and 19,207.80

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Solution

The fourth proportional to 21,929.40, 32,933.70 and 19,207.80 is: 28,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.40 : 32,933.70 = 19,207.80 : x
  2. Step 2: Convert to fraction form
    21,929.40/32,933.70 = 19,207.80/x
  3. Step 3: Cross multiply
    21,929.40x = 32,933.70 × 19,207.80
  4. Step 4: Simplify right side
    21,929.40x = 632,583,922.86
  5. Step 5: Solve for x
    x = 632,583,922.86/21,929.40
  6. Step 6: Final answer
    x = 28,846.39

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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.