Home / 39,323.01-54,318.84-31,420.65

Finding the Fourth Proportional to 39,323.01, 54,318.84 and 31,420.65

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Solution

The fourth proportional to 39,323.01, 54,318.84 and 31,420.65 is: 43,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,323.01 : 54,318.84 = 31,420.65 : x
  2. Step 2: Convert to fraction form
    39,323.01/54,318.84 = 31,420.65/x
  3. Step 3: Cross multiply
    39,323.01x = 54,318.84 × 31,420.65
  4. Step 4: Simplify right side
    39,323.01x = 1,706,733,260.05
  5. Step 5: Solve for x
    x = 1,706,733,260.05/39,323.01
  6. Step 6: Final answer
    x = 43,402.91

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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.