Home / 21,389.32-32,083.84-5,806.92

Finding the Fourth Proportional to 21,389.32, 32,083.84 and 5,806.92

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Solution

The fourth proportional to 21,389.32, 32,083.84 and 5,806.92 is: 8,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.32 : 32,083.84 = 5,806.92 : x
  2. Step 2: Convert to fraction form
    21,389.32/32,083.84 = 5,806.92/x
  3. Step 3: Cross multiply
    21,389.32x = 32,083.84 × 5,806.92
  4. Step 4: Simplify right side
    21,389.32x = 186,308,292.17
  5. Step 5: Solve for x
    x = 186,308,292.17/21,389.32
  6. Step 6: Final answer
    x = 8,710.34

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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.