Home / 28,055.08-42,072.09-9,331.66

Finding the Fourth Proportional to 28,055.08, 42,072.09 and 9,331.66

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Solution

The fourth proportional to 28,055.08, 42,072.09 and 9,331.66 is: 13,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.08 : 42,072.09 = 9,331.66 : x
  2. Step 2: Convert to fraction form
    28,055.08/42,072.09 = 9,331.66/x
  3. Step 3: Cross multiply
    28,055.08x = 42,072.09 × 9,331.66
  4. Step 4: Simplify right side
    28,055.08x = 392,602,439.37
  5. Step 5: Solve for x
    x = 392,602,439.37/28,055.08
  6. Step 6: Final answer
    x = 13,993.99

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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.