Home / 39,023.48-53,852.54-21,118.48

Finding the Fourth Proportional to 39,023.48, 53,852.54 and 21,118.48

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Solution

The fourth proportional to 39,023.48, 53,852.54 and 21,118.48 is: 29,143.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,023.48 : 53,852.54 = 21,118.48 : x
  2. Step 2: Convert to fraction form
    39,023.48/53,852.54 = 21,118.48/x
  3. Step 3: Cross multiply
    39,023.48x = 53,852.54 × 21,118.48
  4. Step 4: Simplify right side
    39,023.48x = 1,137,283,548.72
  5. Step 5: Solve for x
    x = 1,137,283,548.72/39,023.48
  6. Step 6: Final answer
    x = 29,143.57

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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.