Home / 21,228.54-29,264.51-14,835.29

Finding the Fourth Proportional to 21,228.54, 29,264.51 and 14,835.29

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Solution

The fourth proportional to 21,228.54, 29,264.51 and 14,835.29 is: 20,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.54 : 29,264.51 = 14,835.29 : x
  2. Step 2: Convert to fraction form
    21,228.54/29,264.51 = 14,835.29/x
  3. Step 3: Cross multiply
    21,228.54x = 29,264.51 × 14,835.29
  4. Step 4: Simplify right side
    21,228.54x = 434,147,383.32
  5. Step 5: Solve for x
    x = 434,147,383.32/21,228.54
  6. Step 6: Final answer
    x = 20,451.12

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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.