Home / 39,228.24-54,135.60-21,323.28

Finding the Fourth Proportional to 39,228.24, 54,135.60 and 21,323.28

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Solution

The fourth proportional to 39,228.24, 54,135.60 and 21,323.28 is: 29,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.24 : 54,135.60 = 21,323.28 : x
  2. Step 2: Convert to fraction form
    39,228.24/54,135.60 = 21,323.28/x
  3. Step 3: Cross multiply
    39,228.24x = 54,135.60 × 21,323.28
  4. Step 4: Simplify right side
    39,228.24x = 1,154,348,556.77
  5. Step 5: Solve for x
    x = 1,154,348,556.77/39,228.24
  6. Step 6: Final answer
    x = 29,426.47

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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.