Home / 22,077.54-30,461.80-14,920.78

Finding the Fourth Proportional to 22,077.54, 30,461.80 and 14,920.78

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Solution

The fourth proportional to 22,077.54, 30,461.80 and 14,920.78 is: 20,587.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,077.54 : 30,461.80 = 14,920.78 : x
  2. Step 2: Convert to fraction form
    22,077.54/30,461.80 = 14,920.78/x
  3. Step 3: Cross multiply
    22,077.54x = 30,461.80 × 14,920.78
  4. Step 4: Simplify right side
    22,077.54x = 454,513,816.20
  5. Step 5: Solve for x
    x = 454,513,816.20/22,077.54
  6. Step 6: Final answer
    x = 20,587.16

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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.