Home / 28,419.48-39,218.31-16,482.51

Finding the Fourth Proportional to 28,419.48, 39,218.31 and 16,482.51

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Solution

The fourth proportional to 28,419.48, 39,218.31 and 16,482.51 is: 22,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419.48 : 39,218.31 = 16,482.51 : x
  2. Step 2: Convert to fraction form
    28,419.48/39,218.31 = 16,482.51/x
  3. Step 3: Cross multiply
    28,419.48x = 39,218.31 × 16,482.51
  4. Step 4: Simplify right side
    28,419.48x = 646,416,186.76
  5. Step 5: Solve for x
    x = 646,416,186.76/28,419.48
  6. Step 6: Final answer
    x = 22,745.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.