Home / 28,293.21-39,070.89-18,245.16

Finding the Fourth Proportional to 28,293.21, 39,070.89 and 18,245.16

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Solution

The fourth proportional to 28,293.21, 39,070.89 and 18,245.16 is: 25,195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.21 : 39,070.89 = 18,245.16 : x
  2. Step 2: Convert to fraction form
    28,293.21/39,070.89 = 18,245.16/x
  3. Step 3: Cross multiply
    28,293.21x = 39,070.89 × 18,245.16
  4. Step 4: Simplify right side
    28,293.21x = 712,854,639.39
  5. Step 5: Solve for x
    x = 712,854,639.39/28,293.21
  6. Step 6: Final answer
    x = 25,195.25

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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.