Home / 38,973.15-53,776.98-21,976.65

Finding the Fourth Proportional to 38,973.15, 53,776.98 and 21,976.65

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Solution

The fourth proportional to 38,973.15, 53,776.98 and 21,976.65 is: 30,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,973.15 : 53,776.98 = 21,976.65 : x
  2. Step 2: Convert to fraction form
    38,973.15/53,776.98 = 21,976.65/x
  3. Step 3: Cross multiply
    38,973.15x = 53,776.98 × 21,976.65
  4. Step 4: Simplify right side
    38,973.15x = 1,181,837,867.52
  5. Step 5: Solve for x
    x = 1,181,837,867.52/38,973.15
  6. Step 6: Final answer
    x = 30,324.41

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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.