Home / 39,351.63-54,303.89-21,446.28

Finding the Fourth Proportional to 39,351.63, 54,303.89 and 21,446.28

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Solution

The fourth proportional to 39,351.63, 54,303.89 and 21,446.28 is: 29,595.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,351.63 : 54,303.89 = 21,446.28 : x
  2. Step 2: Convert to fraction form
    39,351.63/54,303.89 = 21,446.28/x
  3. Step 3: Cross multiply
    39,351.63x = 54,303.89 × 21,446.28
  4. Step 4: Simplify right side
    39,351.63x = 1,164,616,322.80
  5. Step 5: Solve for x
    x = 1,164,616,322.80/39,351.63
  6. Step 6: Final answer
    x = 29,595.12

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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.