Home / 20,631.09-30,946.63-5,840.13

Finding the Fourth Proportional to 20,631.09, 30,946.63 and 5,840.13

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Solution

The fourth proportional to 20,631.09, 30,946.63 and 5,840.13 is: 8,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631.09 : 30,946.63 = 5,840.13 : x
  2. Step 2: Convert to fraction form
    20,631.09/30,946.63 = 5,840.13/x
  3. Step 3: Cross multiply
    20,631.09x = 30,946.63 × 5,840.13
  4. Step 4: Simplify right side
    20,631.09x = 180,732,471.09
  5. Step 5: Solve for x
    x = 180,732,471.09/20,631.09
  6. Step 6: Final answer
    x = 8,760.20

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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.