Home / 21,710.31-29,965.86-12,284.34

Finding the Fourth Proportional to 21,710.31, 29,965.86 and 12,284.34

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Solution

The fourth proportional to 21,710.31, 29,965.86 and 12,284.34 is: 16,955.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.31 : 29,965.86 = 12,284.34 : x
  2. Step 2: Convert to fraction form
    21,710.31/29,965.86 = 12,284.34/x
  3. Step 3: Cross multiply
    21,710.31x = 29,965.86 × 12,284.34
  4. Step 4: Simplify right side
    21,710.31x = 368,110,812.63
  5. Step 5: Solve for x
    x = 368,110,812.63/21,710.31
  6. Step 6: Final answer
    x = 16,955.58

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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.