Home / 39,362.98-54,320.61-21,458.42

Finding the Fourth Proportional to 39,362.98, 54,320.61 and 21,458.42

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Solution

The fourth proportional to 39,362.98, 54,320.61 and 21,458.42 is: 29,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,362.98 : 54,320.61 = 21,458.42 : x
  2. Step 2: Convert to fraction form
    39,362.98/54,320.61 = 21,458.42/x
  3. Step 3: Cross multiply
    39,362.98x = 54,320.61 × 21,458.42
  4. Step 4: Simplify right side
    39,362.98x = 1,165,634,464.04
  5. Step 5: Solve for x
    x = 1,165,634,464.04/39,362.98
  6. Step 6: Final answer
    x = 29,612.45

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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.