Home / 28,401.64-42,587.48-15,082.09

Finding the Fourth Proportional to 28,401.64, 42,587.48 and 15,082.09

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Solution

The fourth proportional to 28,401.64, 42,587.48 and 15,082.09 is: 22,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401.64 : 42,587.48 = 15,082.09 : x
  2. Step 2: Convert to fraction form
    28,401.64/42,587.48 = 15,082.09/x
  3. Step 3: Cross multiply
    28,401.64x = 42,587.48 × 15,082.09
  4. Step 4: Simplify right side
    28,401.64x = 642,308,137.47
  5. Step 5: Solve for x
    x = 642,308,137.47/28,401.64
  6. Step 6: Final answer
    x = 22,615.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.