Home / 28,299.88-42,447.66-11,655.64

Finding the Fourth Proportional to 28,299.88, 42,447.66 and 11,655.64

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Solution

The fourth proportional to 28,299.88, 42,447.66 and 11,655.64 is: 17,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.88 : 42,447.66 = 11,655.64 : x
  2. Step 2: Convert to fraction form
    28,299.88/42,447.66 = 11,655.64/x
  3. Step 3: Cross multiply
    28,299.88x = 42,447.66 × 11,655.64
  4. Step 4: Simplify right side
    28,299.88x = 494,754,643.80
  5. Step 5: Solve for x
    x = 494,754,643.80/28,299.88
  6. Step 6: Final answer
    x = 17,482.57

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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.