Home / 21,735.80-32,603.70-8,581.40

Finding the Fourth Proportional to 21,735.80, 32,603.70 and 8,581.40

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Solution

The fourth proportional to 21,735.80, 32,603.70 and 8,581.40 is: 12,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.80 : 32,603.70 = 8,581.40 : x
  2. Step 2: Convert to fraction form
    21,735.80/32,603.70 = 8,581.40/x
  3. Step 3: Cross multiply
    21,735.80x = 32,603.70 × 8,581.40
  4. Step 4: Simplify right side
    21,735.80x = 279,785,391.18
  5. Step 5: Solve for x
    x = 279,785,391.18/21,735.80
  6. Step 6: Final answer
    x = 12,872.10

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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.