Home / 28,422.50-42,635.57-8,714.79

Finding the Fourth Proportional to 28,422.50, 42,635.57 and 8,714.79

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Solution

The fourth proportional to 28,422.50, 42,635.57 and 8,714.79 is: 13,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.50 : 42,635.57 = 8,714.79 : x
  2. Step 2: Convert to fraction form
    28,422.50/42,635.57 = 8,714.79/x
  3. Step 3: Cross multiply
    28,422.50x = 42,635.57 × 8,714.79
  4. Step 4: Simplify right side
    28,422.50x = 371,559,995.51
  5. Step 5: Solve for x
    x = 371,559,995.51/28,422.50
  6. Step 6: Final answer
    x = 13,072.74

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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.