Home / 39,392.94-54,362.99-21,488.59

Finding the Fourth Proportional to 39,392.94, 54,362.99 and 21,488.59

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Solution

The fourth proportional to 39,392.94, 54,362.99 and 21,488.59 is: 29,654.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.94 : 54,362.99 = 21,488.59 : x
  2. Step 2: Convert to fraction form
    39,392.94/54,362.99 = 21,488.59/x
  3. Step 3: Cross multiply
    39,392.94x = 54,362.99 × 21,488.59
  4. Step 4: Simplify right side
    39,392.94x = 1,168,184,003.28
  5. Step 5: Solve for x
    x = 1,168,184,003.28/39,392.94
  6. Step 6: Final answer
    x = 29,654.65

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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.