Home / 28,017.99-42,042.78-15,536.45

Finding the Fourth Proportional to 28,017.99, 42,042.78 and 15,536.45

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Solution

The fourth proportional to 28,017.99, 42,042.78 and 15,536.45 is: 23,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.99 : 42,042.78 = 15,536.45 : x
  2. Step 2: Convert to fraction form
    28,017.99/42,042.78 = 15,536.45/x
  3. Step 3: Cross multiply
    28,017.99x = 42,042.78 × 15,536.45
  4. Step 4: Simplify right side
    28,017.99x = 653,195,549.33
  5. Step 5: Solve for x
    x = 653,195,549.33/28,017.99
  6. Step 6: Final answer
    x = 23,313.43

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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.