Home / 39,373.09-54,339.47-22,379.89

Finding the Fourth Proportional to 39,373.09, 54,339.47 and 22,379.89

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Solution

The fourth proportional to 39,373.09, 54,339.47 and 22,379.89 is: 30,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,373.09 : 54,339.47 = 22,379.89 : x
  2. Step 2: Convert to fraction form
    39,373.09/54,339.47 = 22,379.89/x
  3. Step 3: Cross multiply
    39,373.09x = 54,339.47 × 22,379.89
  4. Step 4: Simplify right side
    39,373.09x = 1,216,111,145.51
  5. Step 5: Solve for x
    x = 1,216,111,145.51/39,373.09
  6. Step 6: Final answer
    x = 30,886.86

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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.