Home / 47,120.74-70,681.41-13,840.67

Finding the Fourth Proportional to 47,120.74, 70,681.41 and 13,840.67

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Solution

The fourth proportional to 47,120.74, 70,681.41 and 13,840.67 is: 20,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,120.74 : 70,681.41 = 13,840.67 : x
  2. Step 2: Convert to fraction form
    47,120.74/70,681.41 = 13,840.67/x
  3. Step 3: Cross multiply
    47,120.74x = 70,681.41 × 13,840.67
  4. Step 4: Simplify right side
    47,120.74x = 978,278,247.65
  5. Step 5: Solve for x
    x = 978,278,247.65/47,120.74
  6. Step 6: Final answer
    x = 20,761.10

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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.