Home / 21,871.42-32,846.65-20,113.18

Finding the Fourth Proportional to 21,871.42, 32,846.65 and 20,113.18

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Solution

The fourth proportional to 21,871.42, 32,846.65 and 20,113.18 is: 30,206.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,871.42 : 32,846.65 = 20,113.18 : x
  2. Step 2: Convert to fraction form
    21,871.42/32,846.65 = 20,113.18/x
  3. Step 3: Cross multiply
    21,871.42x = 32,846.65 × 20,113.18
  4. Step 4: Simplify right side
    21,871.42x = 660,650,451.45
  5. Step 5: Solve for x
    x = 660,650,451.45/21,871.42
  6. Step 6: Final answer
    x = 30,206.11

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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.