Home / 21,807.58-32,715.84-8,480.26

Finding the Fourth Proportional to 21,807.58, 32,715.84 and 8,480.26

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Solution

The fourth proportional to 21,807.58, 32,715.84 and 8,480.26 is: 12,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.58 : 32,715.84 = 8,480.26 : x
  2. Step 2: Convert to fraction form
    21,807.58/32,715.84 = 8,480.26/x
  3. Step 3: Cross multiply
    21,807.58x = 32,715.84 × 8,480.26
  4. Step 4: Simplify right side
    21,807.58x = 277,438,829.32
  5. Step 5: Solve for x
    x = 277,438,829.32/21,807.58
  6. Step 6: Final answer
    x = 12,722.13

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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.