Home / 31,511.70-47,277.57-9,325.20

Finding the Fourth Proportional to 31,511.70, 47,277.57 and 9,325.20

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Solution

The fourth proportional to 31,511.70, 47,277.57 and 9,325.20 is: 13,990.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.70 : 47,277.57 = 9,325.20 : x
  2. Step 2: Convert to fraction form
    31,511.70/47,277.57 = 9,325.20/x
  3. Step 3: Cross multiply
    31,511.70x = 47,277.57 × 9,325.20
  4. Step 4: Simplify right side
    31,511.70x = 440,872,795.76
  5. Step 5: Solve for x
    x = 440,872,795.76/31,511.70
  6. Step 6: Final answer
    x = 13,990.77

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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.