Home / 21,573.78-32,364.75-8,425.32

Finding the Fourth Proportional to 21,573.78, 32,364.75 and 8,425.32

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Solution

The fourth proportional to 21,573.78, 32,364.75 and 8,425.32 is: 12,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,573.78 : 32,364.75 = 8,425.32 : x
  2. Step 2: Convert to fraction form
    21,573.78/32,364.75 = 8,425.32/x
  3. Step 3: Cross multiply
    21,573.78x = 32,364.75 × 8,425.32
  4. Step 4: Simplify right side
    21,573.78x = 272,683,375.47
  5. Step 5: Solve for x
    x = 272,683,375.47/21,573.78
  6. Step 6: Final answer
    x = 12,639.57

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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.