Home / 39,392.65-54,362.64-21,488.14

Finding the Fourth Proportional to 39,392.65, 54,362.64 and 21,488.14

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Solution

The fourth proportional to 39,392.65, 54,362.64 and 21,488.14 is: 29,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.65 : 54,362.64 = 21,488.14 : x
  2. Step 2: Convert to fraction form
    39,392.65/54,362.64 = 21,488.14/x
  3. Step 3: Cross multiply
    39,392.65x = 54,362.64 × 21,488.14
  4. Step 4: Simplify right side
    39,392.65x = 1,168,152,019.09
  5. Step 5: Solve for x
    x = 1,168,152,019.09/39,392.65
  6. Step 6: Final answer
    x = 29,654.06

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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.