Home / 39,318.52-54,259.18-21,413.48

Finding the Fourth Proportional to 39,318.52, 54,259.18 and 21,413.48

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Solution

The fourth proportional to 39,318.52, 54,259.18 and 21,413.48 is: 29,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.52 : 54,259.18 = 21,413.48 : x
  2. Step 2: Convert to fraction form
    39,318.52/54,259.18 = 21,413.48/x
  3. Step 3: Cross multiply
    39,318.52x = 54,259.18 × 21,413.48
  4. Step 4: Simplify right side
    39,318.52x = 1,161,877,865.75
  5. Step 5: Solve for x
    x = 1,161,877,865.75/39,318.52
  6. Step 6: Final answer
    x = 29,550.40

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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.