Home / 28,619.10-42,924.06-7,837.74

Finding the Fourth Proportional to 28,619.10, 42,924.06 and 7,837.74

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Solution

The fourth proportional to 28,619.10, 42,924.06 and 7,837.74 is: 11,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.10 : 42,924.06 = 7,837.74 : x
  2. Step 2: Convert to fraction form
    28,619.10/42,924.06 = 7,837.74/x
  3. Step 3: Cross multiply
    28,619.10x = 42,924.06 × 7,837.74
  4. Step 4: Simplify right side
    28,619.10x = 336,427,622.02
  5. Step 5: Solve for x
    x = 336,427,622.02/28,619.10
  6. Step 6: Final answer
    x = 11,755.35

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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.