Home / 39,392.84-54,362.28-21,488.22

Finding the Fourth Proportional to 39,392.84, 54,362.28 and 21,488.22

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Solution

The fourth proportional to 39,392.84, 54,362.28 and 21,488.22 is: 29,653.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.84 : 54,362.28 = 21,488.22 : x
  2. Step 2: Convert to fraction form
    39,392.84/54,362.28 = 21,488.22/x
  3. Step 3: Cross multiply
    39,392.84x = 54,362.28 × 21,488.22
  4. Step 4: Simplify right side
    39,392.84x = 1,168,148,632.34
  5. Step 5: Solve for x
    x = 1,168,148,632.34/39,392.84
  6. Step 6: Final answer
    x = 29,653.83

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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.