Home / 21,639.48-32,455.44-9,951.72

Finding the Fourth Proportional to 21,639.48, 32,455.44 and 9,951.72

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Solution

The fourth proportional to 21,639.48, 32,455.44 and 9,951.72 is: 14,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.48 : 32,455.44 = 9,951.72 : x
  2. Step 2: Convert to fraction form
    21,639.48/32,455.44 = 9,951.72/x
  3. Step 3: Cross multiply
    21,639.48x = 32,455.44 × 9,951.72
  4. Step 4: Simplify right side
    21,639.48x = 322,987,451.36
  5. Step 5: Solve for x
    x = 322,987,451.36/21,639.48
  6. Step 6: Final answer
    x = 14,925.84

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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.