Home / 39,400.86-54,374.56-21,496.86

Finding the Fourth Proportional to 39,400.86, 54,374.56 and 21,496.86

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Solution

The fourth proportional to 39,400.86, 54,374.56 and 21,496.86 is: 29,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400.86 : 54,374.56 = 21,496.86 : x
  2. Step 2: Convert to fraction form
    39,400.86/54,374.56 = 21,496.86/x
  3. Step 3: Cross multiply
    39,400.86x = 54,374.56 × 21,496.86
  4. Step 4: Simplify right side
    39,400.86x = 1,168,882,303.88
  5. Step 5: Solve for x
    x = 1,168,882,303.88/39,400.86
  6. Step 6: Final answer
    x = 29,666.42

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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.