Home / 22,292.30-30,762.96-12,220.28

Finding the Fourth Proportional to 22,292.30, 30,762.96 and 12,220.28

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Solution

The fourth proportional to 22,292.30, 30,762.96 and 12,220.28 is: 16,863.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,292.30 : 30,762.96 = 12,220.28 : x
  2. Step 2: Convert to fraction form
    22,292.30/30,762.96 = 12,220.28/x
  3. Step 3: Cross multiply
    22,292.30x = 30,762.96 × 12,220.28
  4. Step 4: Simplify right side
    22,292.30x = 375,931,984.83
  5. Step 5: Solve for x
    x = 375,931,984.83/22,292.30
  6. Step 6: Final answer
    x = 16,863.76

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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.