Home / 28,431.50-42,658.59-14,383.94

Finding the Fourth Proportional to 28,431.50, 42,658.59 and 14,383.94

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Solution

The fourth proportional to 28,431.50, 42,658.59 and 14,383.94 is: 21,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.50 : 42,658.59 = 14,383.94 : x
  2. Step 2: Convert to fraction form
    28,431.50/42,658.59 = 14,383.94/x
  3. Step 3: Cross multiply
    28,431.50x = 42,658.59 × 14,383.94
  4. Step 4: Simplify right side
    28,431.50x = 613,598,599.04
  5. Step 5: Solve for x
    x = 613,598,599.04/28,431.50
  6. Step 6: Final answer
    x = 21,581.65

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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.