Home / 28,316.80-39,066.28-18,244.44

Finding the Fourth Proportional to 28,316.80, 39,066.28 and 18,244.44

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Solution

The fourth proportional to 28,316.80, 39,066.28 and 18,244.44 is: 25,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.80 : 39,066.28 = 18,244.44 : x
  2. Step 2: Convert to fraction form
    28,316.80/39,066.28 = 18,244.44/x
  3. Step 3: Cross multiply
    28,316.80x = 39,066.28 × 18,244.44
  4. Step 4: Simplify right side
    28,316.80x = 712,742,401.48
  5. Step 5: Solve for x
    x = 712,742,401.48/28,316.80
  6. Step 6: Final answer
    x = 25,170.30

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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.