Home / 28,742.67-39,661.80-15,993.81

Finding the Fourth Proportional to 28,742.67, 39,661.80 and 15,993.81

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Solution

The fourth proportional to 28,742.67, 39,661.80 and 15,993.81 is: 22,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.67 : 39,661.80 = 15,993.81 : x
  2. Step 2: Convert to fraction form
    28,742.67/39,661.80 = 15,993.81/x
  3. Step 3: Cross multiply
    28,742.67x = 39,661.80 × 15,993.81
  4. Step 4: Simplify right side
    28,742.67x = 634,343,293.46
  5. Step 5: Solve for x
    x = 634,343,293.46/28,742.67
  6. Step 6: Final answer
    x = 22,069.74

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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.