Home / 30,915.52-42,664.38-17,486.50

Finding the Fourth Proportional to 30,915.52, 42,664.38 and 17,486.50

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Solution

The fourth proportional to 30,915.52, 42,664.38 and 17,486.50 is: 24,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,915.52 : 42,664.38 = 17,486.50 : x
  2. Step 2: Convert to fraction form
    30,915.52/42,664.38 = 17,486.50/x
  3. Step 3: Cross multiply
    30,915.52x = 42,664.38 × 17,486.50
  4. Step 4: Simplify right side
    30,915.52x = 746,050,680.87
  5. Step 5: Solve for x
    x = 746,050,680.87/30,915.52
  6. Step 6: Final answer
    x = 24,131.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.