Home / 31,735.20-47,607.12-12,020.64

Finding the Fourth Proportional to 31,735.20, 47,607.12 and 12,020.64

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Solution

The fourth proportional to 31,735.20, 47,607.12 and 12,020.64 is: 18,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,735.20 : 47,607.12 = 12,020.64 : x
  2. Step 2: Convert to fraction form
    31,735.20/47,607.12 = 12,020.64/x
  3. Step 3: Cross multiply
    31,735.20x = 47,607.12 × 12,020.64
  4. Step 4: Simplify right side
    31,735.20x = 572,268,050.96
  5. Step 5: Solve for x
    x = 572,268,050.96/31,735.20
  6. Step 6: Final answer
    x = 18,032.60

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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.