Home / 20,587.27-30,880.90-9,490.69

Finding the Fourth Proportional to 20,587.27, 30,880.90 and 9,490.69

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Solution

The fourth proportional to 20,587.27, 30,880.90 and 9,490.69 is: 14,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.27 : 30,880.90 = 9,490.69 : x
  2. Step 2: Convert to fraction form
    20,587.27/30,880.90 = 9,490.69/x
  3. Step 3: Cross multiply
    20,587.27x = 30,880.90 × 9,490.69
  4. Step 4: Simplify right side
    20,587.27x = 293,080,983.48
  5. Step 5: Solve for x
    x = 293,080,983.48/20,587.27
  6. Step 6: Final answer
    x = 14,236.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.