Home / 22,430.06-30,954.19-12,871.70

Finding the Fourth Proportional to 22,430.06, 30,954.19 and 12,871.70

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Solution

The fourth proportional to 22,430.06, 30,954.19 and 12,871.70 is: 17,763.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.06 : 30,954.19 = 12,871.70 : x
  2. Step 2: Convert to fraction form
    22,430.06/30,954.19 = 12,871.70/x
  3. Step 3: Cross multiply
    22,430.06x = 30,954.19 × 12,871.70
  4. Step 4: Simplify right side
    22,430.06x = 398,433,047.42
  5. Step 5: Solve for x
    x = 398,433,047.42/22,430.06
  6. Step 6: Final answer
    x = 17,763.35

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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.