Home / 22,783.07-31,430.35-13,347.65

Finding the Fourth Proportional to 22,783.07, 31,430.35 and 13,347.65

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Solution

The fourth proportional to 22,783.07, 31,430.35 and 13,347.65 is: 18,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,783.07 : 31,430.35 = 13,347.65 : x
  2. Step 2: Convert to fraction form
    22,783.07/31,430.35 = 13,347.65/x
  3. Step 3: Cross multiply
    22,783.07x = 31,430.35 × 13,347.65
  4. Step 4: Simplify right side
    22,783.07x = 419,521,311.18
  5. Step 5: Solve for x
    x = 419,521,311.18/22,783.07
  6. Step 6: Final answer
    x = 18,413.73

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Double scale
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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.