Home / 31,560.40-47,155.72-30,456.67

Finding the Fourth Proportional to 31,560.40, 47,155.72 and 30,456.67

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Solution

The fourth proportional to 31,560.40, 47,155.72 and 30,456.67 is: 45,506.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.40 : 47,155.72 = 30,456.67 : x
  2. Step 2: Convert to fraction form
    31,560.40/47,155.72 = 30,456.67/x
  3. Step 3: Cross multiply
    31,560.40x = 47,155.72 × 30,456.67
  4. Step 4: Simplify right side
    31,560.40x = 1,436,206,202.65
  5. Step 5: Solve for x
    x = 1,436,206,202.65/31,560.40
  6. Step 6: Final answer
    x = 45,506.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.