Home / 21,575.40-32,352.12-9,878.60

Finding the Fourth Proportional to 21,575.40, 32,352.12 and 9,878.60

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Solution

The fourth proportional to 21,575.40, 32,352.12 and 9,878.60 is: 14,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.40 : 32,352.12 = 9,878.60 : x
  2. Step 2: Convert to fraction form
    21,575.40/32,352.12 = 9,878.60/x
  3. Step 3: Cross multiply
    21,575.40x = 32,352.12 × 9,878.60
  4. Step 4: Simplify right side
    21,575.40x = 319,593,490.87
  5. Step 5: Solve for x
    x = 319,593,490.87/21,575.40
  6. Step 6: Final answer
    x = 14,812.87

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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.