Home / 28,329.09-42,462.50-11,680.10

Finding the Fourth Proportional to 28,329.09, 42,462.50 and 11,680.10

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Solution

The fourth proportional to 28,329.09, 42,462.50 and 11,680.10 is: 17,507.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,329.09 : 42,462.50 = 11,680.10 : x
  2. Step 2: Convert to fraction form
    28,329.09/42,462.50 = 11,680.10/x
  3. Step 3: Cross multiply
    28,329.09x = 42,462.50 × 11,680.10
  4. Step 4: Simplify right side
    28,329.09x = 495,966,233.32
  5. Step 5: Solve for x
    x = 495,966,233.32/28,329.09
  6. Step 6: Final answer
    x = 17,507.31

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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.