Home / 39,024.12-53,852.82-21,118.70

Finding the Fourth Proportional to 39,024.12, 53,852.82 and 21,118.70

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Solution

The fourth proportional to 39,024.12, 53,852.82 and 21,118.70 is: 29,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,024.12 : 53,852.82 = 21,118.70 : x
  2. Step 2: Convert to fraction form
    39,024.12/53,852.82 = 21,118.70/x
  3. Step 3: Cross multiply
    39,024.12x = 53,852.82 × 21,118.70
  4. Step 4: Simplify right side
    39,024.12x = 1,137,301,549.73
  5. Step 5: Solve for x
    x = 1,137,301,549.73/39,024.12
  6. Step 6: Final answer
    x = 29,143.55

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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.