Home / 28,133.10-42,178.68-17,037.36

Finding the Fourth Proportional to 28,133.10, 42,178.68 and 17,037.36

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Solution

The fourth proportional to 28,133.10, 42,178.68 and 17,037.36 is: 25,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.10 : 42,178.68 = 17,037.36 : x
  2. Step 2: Convert to fraction form
    28,133.10/42,178.68 = 17,037.36/x
  3. Step 3: Cross multiply
    28,133.10x = 42,178.68 × 17,037.36
  4. Step 4: Simplify right side
    28,133.10x = 718,613,355.48
  5. Step 5: Solve for x
    x = 718,613,355.48/28,133.10
  6. Step 6: Final answer
    x = 25,543.34

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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.