Home / 18,835.49-28,280.97-10,531.77

Finding the Fourth Proportional to 18,835.49, 28,280.97 and 10,531.77

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Solution

The fourth proportional to 18,835.49, 28,280.97 and 10,531.77 is: 15,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.49 : 28,280.97 = 10,531.77 : x
  2. Step 2: Convert to fraction form
    18,835.49/28,280.97 = 10,531.77/x
  3. Step 3: Cross multiply
    18,835.49x = 28,280.97 × 10,531.77
  4. Step 4: Simplify right side
    18,835.49x = 297,848,671.42
  5. Step 5: Solve for x
    x = 297,848,671.42/18,835.49
  6. Step 6: Final answer
    x = 15,813.17

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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.