Home / 39,208.45-54,107.57-21,303.52

Finding the Fourth Proportional to 39,208.45, 54,107.57 and 21,303.52

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Solution

The fourth proportional to 39,208.45, 54,107.57 and 21,303.52 is: 29,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,208.45 : 54,107.57 = 21,303.52 : x
  2. Step 2: Convert to fraction form
    39,208.45/54,107.57 = 21,303.52/x
  3. Step 3: Cross multiply
    39,208.45x = 54,107.57 × 21,303.52
  4. Step 4: Simplify right side
    39,208.45x = 1,152,681,862.08
  5. Step 5: Solve for x
    x = 1,152,681,862.08/39,208.45
  6. Step 6: Final answer
    x = 29,398.81

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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.