Home / 28,915.32-43,396.13-27,992.70

Finding the Fourth Proportional to 28,915.32, 43,396.13 and 27,992.70

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Solution

The fourth proportional to 28,915.32, 43,396.13 and 27,992.70 is: 42,011.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.32 : 43,396.13 = 27,992.70 : x
  2. Step 2: Convert to fraction form
    28,915.32/43,396.13 = 27,992.70/x
  3. Step 3: Cross multiply
    28,915.32x = 43,396.13 × 27,992.70
  4. Step 4: Simplify right side
    28,915.32x = 1,214,774,918.23
  5. Step 5: Solve for x
    x = 1,214,774,918.23/28,915.32
  6. Step 6: Final answer
    x = 42,011.46

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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.