Home / 39,328.39-54,273.32-21,423.22

Finding the Fourth Proportional to 39,328.39, 54,273.32 and 21,423.22

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Solution

The fourth proportional to 39,328.39, 54,273.32 and 21,423.22 is: 29,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,328.39 : 54,273.32 = 21,423.22 : x
  2. Step 2: Convert to fraction form
    39,328.39/54,273.32 = 21,423.22/x
  3. Step 3: Cross multiply
    39,328.39x = 54,273.32 × 21,423.22
  4. Step 4: Simplify right side
    39,328.39x = 1,162,709,274.49
  5. Step 5: Solve for x
    x = 1,162,709,274.49/39,328.39
  6. Step 6: Final answer
    x = 29,564.12

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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.