Home / 31,019.60-46,529.40-19,938.80

Finding the Fourth Proportional to 31,019.60, 46,529.40 and 19,938.80

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Solution

The fourth proportional to 31,019.60, 46,529.40 and 19,938.80 is: 29,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,019.60 : 46,529.40 = 19,938.80 : x
  2. Step 2: Convert to fraction form
    31,019.60/46,529.40 = 19,938.80/x
  3. Step 3: Cross multiply
    31,019.60x = 46,529.40 × 19,938.80
  4. Step 4: Simplify right side
    31,019.60x = 927,740,400.72
  5. Step 5: Solve for x
    x = 927,740,400.72/31,019.60
  6. Step 6: Final answer
    x = 29,908.20

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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.