Home / 21,921.10-32,881.65-14,922.70

Finding the Fourth Proportional to 21,921.10, 32,881.65 and 14,922.70

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Solution

The fourth proportional to 21,921.10, 32,881.65 and 14,922.70 is: 22,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.10 : 32,881.65 = 14,922.70 : x
  2. Step 2: Convert to fraction form
    21,921.10/32,881.65 = 14,922.70/x
  3. Step 3: Cross multiply
    21,921.10x = 32,881.65 × 14,922.70
  4. Step 4: Simplify right side
    21,921.10x = 490,682,998.46
  5. Step 5: Solve for x
    x = 490,682,998.46/21,921.10
  6. Step 6: Final answer
    x = 22,384.05

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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.