Home / 28,740.49-39,661.25-15,993.18

Finding the Fourth Proportional to 28,740.49, 39,661.25 and 15,993.18

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Solution

The fourth proportional to 28,740.49, 39,661.25 and 15,993.18 is: 22,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.49 : 39,661.25 = 15,993.18 : x
  2. Step 2: Convert to fraction form
    28,740.49/39,661.25 = 15,993.18/x
  3. Step 3: Cross multiply
    28,740.49x = 39,661.25 × 15,993.18
  4. Step 4: Simplify right side
    28,740.49x = 634,309,430.31
  5. Step 5: Solve for x
    x = 634,309,430.31/28,740.49
  6. Step 6: Final answer
    x = 22,070.24

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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.