Home / 38,704.81-53,413.45-21,937.81

Finding the Fourth Proportional to 38,704.81, 53,413.45 and 21,937.81

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Solution

The fourth proportional to 38,704.81, 53,413.45 and 21,937.81 is: 30,274.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,704.81 : 53,413.45 = 21,937.81 : x
  2. Step 2: Convert to fraction form
    38,704.81/53,413.45 = 21,937.81/x
  3. Step 3: Cross multiply
    38,704.81x = 53,413.45 × 21,937.81
  4. Step 4: Simplify right side
    38,704.81x = 1,171,774,117.54
  5. Step 5: Solve for x
    x = 1,171,774,117.54/38,704.81
  6. Step 6: Final answer
    x = 30,274.64

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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.