Home / 28,342.64-42,515.70-8,622.66

Finding the Fourth Proportional to 28,342.64, 42,515.70 and 8,622.66

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Solution

The fourth proportional to 28,342.64, 42,515.70 and 8,622.66 is: 12,934.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.64 : 42,515.70 = 8,622.66 : x
  2. Step 2: Convert to fraction form
    28,342.64/42,515.70 = 8,622.66/x
  3. Step 3: Cross multiply
    28,342.64x = 42,515.70 × 8,622.66
  4. Step 4: Simplify right side
    28,342.64x = 366,598,425.76
  5. Step 5: Solve for x
    x = 366,598,425.76/28,342.64
  6. Step 6: Final answer
    x = 12,934.52

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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.