Home / 19,651.10-29,483.76-12,145.88

Finding the Fourth Proportional to 19,651.10, 29,483.76 and 12,145.88

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Solution

The fourth proportional to 19,651.10, 29,483.76 and 12,145.88 is: 18,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.10 : 29,483.76 = 12,145.88 : x
  2. Step 2: Convert to fraction form
    19,651.10/29,483.76 = 12,145.88/x
  3. Step 3: Cross multiply
    19,651.10x = 29,483.76 × 12,145.88
  4. Step 4: Simplify right side
    19,651.10x = 358,106,210.91
  5. Step 5: Solve for x
    x = 358,106,210.91/19,651.10
  6. Step 6: Final answer
    x = 18,223.21

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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.