Home / 27,312.49-40,969.05-11,520.19

Finding the Fourth Proportional to 27,312.49, 40,969.05 and 11,520.19

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Solution

The fourth proportional to 27,312.49, 40,969.05 and 11,520.19 is: 17,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.49 : 40,969.05 = 11,520.19 : x
  2. Step 2: Convert to fraction form
    27,312.49/40,969.05 = 11,520.19/x
  3. Step 3: Cross multiply
    27,312.49x = 40,969.05 × 11,520.19
  4. Step 4: Simplify right side
    27,312.49x = 471,971,240.12
  5. Step 5: Solve for x
    x = 471,971,240.12/27,312.49
  6. Step 6: Final answer
    x = 17,280.42

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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.