Home / 20,846.81-31,244.30-9,148.25

Finding the Fourth Proportional to 20,846.81, 31,244.30 and 9,148.25

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Solution

The fourth proportional to 20,846.81, 31,244.30 and 9,148.25 is: 13,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.81 : 31,244.30 = 9,148.25 : x
  2. Step 2: Convert to fraction form
    20,846.81/31,244.30 = 9,148.25/x
  3. Step 3: Cross multiply
    20,846.81x = 31,244.30 × 9,148.25
  4. Step 4: Simplify right side
    20,846.81x = 285,830,734.15
  5. Step 5: Solve for x
    x = 285,830,734.15/20,846.81
  6. Step 6: Final answer
    x = 13,711.00

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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.