Home / 28,069.49-42,072.35-9,345.12

Finding the Fourth Proportional to 28,069.49, 42,072.35 and 9,345.12

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Solution

The fourth proportional to 28,069.49, 42,072.35 and 9,345.12 is: 14,007.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.49 : 42,072.35 = 9,345.12 : x
  2. Step 2: Convert to fraction form
    28,069.49/42,072.35 = 9,345.12/x
  3. Step 3: Cross multiply
    28,069.49x = 42,072.35 × 9,345.12
  4. Step 4: Simplify right side
    28,069.49x = 393,171,112.71
  5. Step 5: Solve for x
    x = 393,171,112.71/28,069.49
  6. Step 6: Final answer
    x = 14,007.07

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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.