Home / 21,533.07-32,305.73-8,389.20

Finding the Fourth Proportional to 21,533.07, 32,305.73 and 8,389.20

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Solution

The fourth proportional to 21,533.07, 32,305.73 and 8,389.20 is: 12,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.07 : 32,305.73 = 8,389.20 : x
  2. Step 2: Convert to fraction form
    21,533.07/32,305.73 = 8,389.20/x
  3. Step 3: Cross multiply
    21,533.07x = 32,305.73 × 8,389.20
  4. Step 4: Simplify right side
    21,533.07x = 271,019,188.17
  5. Step 5: Solve for x
    x = 271,019,188.17/21,533.07
  6. Step 6: Final answer
    x = 12,586.18

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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.