Home / 19,430.40-29,153.70-6,286.80

Finding the Fourth Proportional to 19,430.40, 29,153.70 and 6,286.80

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Solution

The fourth proportional to 19,430.40, 29,153.70 and 6,286.80 is: 9,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.40 : 29,153.70 = 6,286.80 : x
  2. Step 2: Convert to fraction form
    19,430.40/29,153.70 = 6,286.80/x
  3. Step 3: Cross multiply
    19,430.40x = 29,153.70 × 6,286.80
  4. Step 4: Simplify right side
    19,430.40x = 183,283,481.16
  5. Step 5: Solve for x
    x = 183,283,481.16/19,430.40
  6. Step 6: Final answer
    x = 9,432.82

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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.