Home / 21,710.31-32,529.69-19,894.56

Finding the Fourth Proportional to 21,710.31, 32,529.69 and 19,894.56

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Solution

The fourth proportional to 21,710.31, 32,529.69 and 19,894.56 is: 29,809.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.31 : 32,529.69 = 19,894.56 : x
  2. Step 2: Convert to fraction form
    21,710.31/32,529.69 = 19,894.56/x
  3. Step 3: Cross multiply
    21,710.31x = 32,529.69 × 19,894.56
  4. Step 4: Simplify right side
    21,710.31x = 647,163,869.49
  5. Step 5: Solve for x
    x = 647,163,869.49/21,710.31
  6. Step 6: Final answer
    x = 29,809.06

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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.