Home / 21,852.04-30,154.92-12,291.70

Finding the Fourth Proportional to 21,852.04, 30,154.92 and 12,291.70

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Solution

The fourth proportional to 21,852.04, 30,154.92 and 12,291.70 is: 16,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.04 : 30,154.92 = 12,291.70 : x
  2. Step 2: Convert to fraction form
    21,852.04/30,154.92 = 12,291.70/x
  3. Step 3: Cross multiply
    21,852.04x = 30,154.92 × 12,291.70
  4. Step 4: Simplify right side
    21,852.04x = 370,655,230.16
  5. Step 5: Solve for x
    x = 370,655,230.16/21,852.04
  6. Step 6: Final answer
    x = 16,962.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.