Home / 19,148.32-28,701.20-8,051.76

Finding the Fourth Proportional to 19,148.32, 28,701.20 and 8,051.76

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Solution

The fourth proportional to 19,148.32, 28,701.20 and 8,051.76 is: 12,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.32 : 28,701.20 = 8,051.76 : x
  2. Step 2: Convert to fraction form
    19,148.32/28,701.20 = 8,051.76/x
  3. Step 3: Cross multiply
    19,148.32x = 28,701.20 × 8,051.76
  4. Step 4: Simplify right side
    19,148.32x = 231,095,174.11
  5. Step 5: Solve for x
    x = 231,095,174.11/19,148.32
  6. Step 6: Final answer
    x = 12,068.69

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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.