Home / 36,019.60-54,029.40-19,430.80

Finding the Fourth Proportional to 36,019.60, 54,029.40 and 19,430.80

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Solution

The fourth proportional to 36,019.60, 54,029.40 and 19,430.80 is: 29,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,019.60 : 54,029.40 = 19,430.80 : x
  2. Step 2: Convert to fraction form
    36,019.60/54,029.40 = 19,430.80/x
  3. Step 3: Cross multiply
    36,019.60x = 54,029.40 × 19,430.80
  4. Step 4: Simplify right side
    36,019.60x = 1,049,834,465.52
  5. Step 5: Solve for x
    x = 1,049,834,465.52/36,019.60
  6. Step 6: Final answer
    x = 29,146.20

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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.