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Finding the Fourth Proportional to 19,000.31, 28,500.86 and 5,852.66

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Solution

The fourth proportional to 19,000.31, 28,500.86 and 5,852.66 is: 8,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.31 : 28,500.86 = 5,852.66 : x
  2. Step 2: Convert to fraction form
    19,000.31/28,500.86 = 5,852.66/x
  3. Step 3: Cross multiply
    19,000.31x = 28,500.86 × 5,852.66
  4. Step 4: Simplify right side
    19,000.31x = 166,805,715.41
  5. Step 5: Solve for x
    x = 166,805,715.41/19,000.31
  6. Step 6: Final answer
    x = 8,779.11

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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.