Home / 39,023.36-53,852.24-21,118.37

Finding the Fourth Proportional to 39,023.36, 53,852.24 and 21,118.37

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Solution

The fourth proportional to 39,023.36, 53,852.24 and 21,118.37 is: 29,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,023.36 : 53,852.24 = 21,118.37 : x
  2. Step 2: Convert to fraction form
    39,023.36/53,852.24 = 21,118.37/x
  3. Step 3: Cross multiply
    39,023.36x = 53,852.24 × 21,118.37
  4. Step 4: Simplify right side
    39,023.36x = 1,137,271,154.80
  5. Step 5: Solve for x
    x = 1,137,271,154.80/39,023.36
  6. Step 6: Final answer
    x = 29,143.35

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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.