Home / 28,084.16-42,123.45-7,307.66

Finding the Fourth Proportional to 28,084.16, 42,123.45 and 7,307.66

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Solution

The fourth proportional to 28,084.16, 42,123.45 and 7,307.66 is: 10,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.16 : 42,123.45 = 7,307.66 : x
  2. Step 2: Convert to fraction form
    28,084.16/42,123.45 = 7,307.66/x
  3. Step 3: Cross multiply
    28,084.16x = 42,123.45 × 7,307.66
  4. Step 4: Simplify right side
    28,084.16x = 307,823,850.63
  5. Step 5: Solve for x
    x = 307,823,850.63/28,084.16
  6. Step 6: Final answer
    x = 10,960.76

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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.