Home / 28,915.64-43,367.45-11,140.19

Finding the Fourth Proportional to 28,915.64, 43,367.45 and 11,140.19

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Solution

The fourth proportional to 28,915.64, 43,367.45 and 11,140.19 is: 16,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.64 : 43,367.45 = 11,140.19 : x
  2. Step 2: Convert to fraction form
    28,915.64/43,367.45 = 11,140.19/x
  3. Step 3: Cross multiply
    28,915.64x = 43,367.45 × 11,140.19
  4. Step 4: Simplify right side
    28,915.64x = 483,121,360.28
  5. Step 5: Solve for x
    x = 483,121,360.28/28,915.64
  6. Step 6: Final answer
    x = 16,707.96

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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.