Home / 28,089.66-42,131.70-7,313.16

Finding the Fourth Proportional to 28,089.66, 42,131.70 and 7,313.16

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Solution

The fourth proportional to 28,089.66, 42,131.70 and 7,313.16 is: 10,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.66 : 42,131.70 = 7,313.16 : x
  2. Step 2: Convert to fraction form
    28,089.66/42,131.70 = 7,313.16/x
  3. Step 3: Cross multiply
    28,089.66x = 42,131.70 × 7,313.16
  4. Step 4: Simplify right side
    28,089.66x = 308,115,863.17
  5. Step 5: Solve for x
    x = 308,115,863.17/28,089.66
  6. Step 6: Final answer
    x = 10,969.01

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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.