Home / 47,289.40-70,928.32-12,226.12

Finding the Fourth Proportional to 47,289.40, 70,928.32 and 12,226.12

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Solution

The fourth proportional to 47,289.40, 70,928.32 and 12,226.12 is: 18,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,289.40 : 70,928.32 = 12,226.12 : x
  2. Step 2: Convert to fraction form
    47,289.40/70,928.32 = 12,226.12/x
  3. Step 3: Cross multiply
    47,289.40x = 70,928.32 × 12,226.12
  4. Step 4: Simplify right side
    47,289.40x = 867,178,151.72
  5. Step 5: Solve for x
    x = 867,178,151.72/47,289.40
  6. Step 6: Final answer
    x = 18,337.69

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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.