Home / 31,903.20-47,856.60-9,717.30

Finding the Fourth Proportional to 31,903.20, 47,856.60 and 9,717.30

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Solution

The fourth proportional to 31,903.20, 47,856.60 and 9,717.30 is: 14,576.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,903.20 : 47,856.60 = 9,717.30 : x
  2. Step 2: Convert to fraction form
    31,903.20/47,856.60 = 9,717.30/x
  3. Step 3: Cross multiply
    31,903.20x = 47,856.60 × 9,717.30
  4. Step 4: Simplify right side
    31,903.20x = 465,036,939.18
  5. Step 5: Solve for x
    x = 465,036,939.18/31,903.20
  6. Step 6: Final answer
    x = 14,576.50

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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.