Home / 30,331.12-45,496.79-9,271.08

Finding the Fourth Proportional to 30,331.12, 45,496.79 and 9,271.08

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Solution

The fourth proportional to 30,331.12, 45,496.79 and 9,271.08 is: 13,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.12 : 45,496.79 = 9,271.08 : x
  2. Step 2: Convert to fraction form
    30,331.12/45,496.79 = 9,271.08/x
  3. Step 3: Cross multiply
    30,331.12x = 45,496.79 × 9,271.08
  4. Step 4: Simplify right side
    30,331.12x = 421,804,266.36
  5. Step 5: Solve for x
    x = 421,804,266.36/30,331.12
  6. Step 6: Final answer
    x = 13,906.65

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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.