Home / 20,347.49-30,659.90-16,730.75

Finding the Fourth Proportional to 20,347.49, 30,659.90 and 16,730.75

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Solution

The fourth proportional to 20,347.49, 30,659.90 and 16,730.75 is: 25,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.49 : 30,659.90 = 16,730.75 : x
  2. Step 2: Convert to fraction form
    20,347.49/30,659.90 = 16,730.75/x
  3. Step 3: Cross multiply
    20,347.49x = 30,659.90 × 16,730.75
  4. Step 4: Simplify right side
    20,347.49x = 512,963,114.92
  5. Step 5: Solve for x
    x = 512,963,114.92/20,347.49
  6. Step 6: Final answer
    x = 25,210.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.