Home / 31,426.48-47,129.70-10,362.60

Finding the Fourth Proportional to 31,426.48, 47,129.70 and 10,362.60

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Solution

The fourth proportional to 31,426.48, 47,129.70 and 10,362.60 is: 15,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.48 : 47,129.70 = 10,362.60 : x
  2. Step 2: Convert to fraction form
    31,426.48/47,129.70 = 10,362.60/x
  3. Step 3: Cross multiply
    31,426.48x = 47,129.70 × 10,362.60
  4. Step 4: Simplify right side
    31,426.48x = 488,386,229.22
  5. Step 5: Solve for x
    x = 488,386,229.22/31,426.48
  6. Step 6: Final answer
    x = 15,540.60

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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.