Home / 39,369.84-54,336-22,378.32

Finding the Fourth Proportional to 39,369.84, 54,336 and 22,378.32

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Solution

The fourth proportional to 39,369.84, 54,336 and 22,378.32 is: 30,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,369.84 : 54,336 = 22,378.32 : x
  2. Step 2: Convert to fraction form
    39,369.84/54,336 = 22,378.32/x
  3. Step 3: Cross multiply
    39,369.84x = 54,336 × 22,378.32
  4. Step 4: Simplify right side
    39,369.84x = 1,215,948,395.52
  5. Step 5: Solve for x
    x = 1,215,948,395.52/39,369.84
  6. Step 6: Final answer
    x = 30,885.28

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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.