Home / 33,312.19-45,966.40-21,391.69

Finding the Fourth Proportional to 33,312.19, 45,966.40 and 21,391.69

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Solution

The fourth proportional to 33,312.19, 45,966.40 and 21,391.69 is: 29,517.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,312.19 : 45,966.40 = 21,391.69 : x
  2. Step 2: Convert to fraction form
    33,312.19/45,966.40 = 21,391.69/x
  3. Step 3: Cross multiply
    33,312.19x = 45,966.40 × 21,391.69
  4. Step 4: Simplify right side
    33,312.19x = 983,298,810.82
  5. Step 5: Solve for x
    x = 983,298,810.82/33,312.19
  6. Step 6: Final answer
    x = 29,517.69

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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.