Home / 28,186.37-42,276.20-7,411.49

Finding the Fourth Proportional to 28,186.37, 42,276.20 and 7,411.49

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Solution

The fourth proportional to 28,186.37, 42,276.20 and 7,411.49 is: 11,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.37 : 42,276.20 = 7,411.49 : x
  2. Step 2: Convert to fraction form
    28,186.37/42,276.20 = 7,411.49/x
  3. Step 3: Cross multiply
    28,186.37x = 42,276.20 × 7,411.49
  4. Step 4: Simplify right side
    28,186.37x = 313,329,596.48
  5. Step 5: Solve for x
    x = 313,329,596.48/28,186.37
  6. Step 6: Final answer
    x = 11,116.35

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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.