Home / 22,017.90-32,970.47-12,146.21

Finding the Fourth Proportional to 22,017.90, 32,970.47 and 12,146.21

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Solution

The fourth proportional to 22,017.90, 32,970.47 and 12,146.21 is: 18,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.90 : 32,970.47 = 12,146.21 : x
  2. Step 2: Convert to fraction form
    22,017.90/32,970.47 = 12,146.21/x
  3. Step 3: Cross multiply
    22,017.90x = 32,970.47 × 12,146.21
  4. Step 4: Simplify right side
    22,017.90x = 400,466,026.84
  5. Step 5: Solve for x
    x = 400,466,026.84/22,017.90
  6. Step 6: Final answer
    x = 18,188.20

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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.