Home / 27,355.18-41,032.79-21,124.30

Finding the Fourth Proportional to 27,355.18, 41,032.79 and 21,124.30

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Solution

The fourth proportional to 27,355.18, 41,032.79 and 21,124.30 is: 31,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,355.18 : 41,032.79 = 21,124.30 : x
  2. Step 2: Convert to fraction form
    27,355.18/41,032.79 = 21,124.30/x
  3. Step 3: Cross multiply
    27,355.18x = 41,032.79 × 21,124.30
  4. Step 4: Simplify right side
    27,355.18x = 866,788,965.80
  5. Step 5: Solve for x
    x = 866,788,965.80/27,355.18
  6. Step 6: Final answer
    x = 31,686.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.