Home / 34,170.65-47,153.16-19,830.90

Finding the Fourth Proportional to 34,170.65, 47,153.16 and 19,830.90

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Solution

The fourth proportional to 34,170.65, 47,153.16 and 19,830.90 is: 27,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,170.65 : 47,153.16 = 19,830.90 : x
  2. Step 2: Convert to fraction form
    34,170.65/47,153.16 = 19,830.90/x
  3. Step 3: Cross multiply
    34,170.65x = 47,153.16 × 19,830.90
  4. Step 4: Simplify right side
    34,170.65x = 935,089,600.64
  5. Step 5: Solve for x
    x = 935,089,600.64/34,170.65
  6. Step 6: Final answer
    x = 27,365.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.