Home / 21,630.04-29,849.58-12,677.72

Finding the Fourth Proportional to 21,630.04, 29,849.58 and 12,677.72

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Solution

The fourth proportional to 21,630.04, 29,849.58 and 12,677.72 is: 17,495.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.04 : 29,849.58 = 12,677.72 : x
  2. Step 2: Convert to fraction form
    21,630.04/29,849.58 = 12,677.72/x
  3. Step 3: Cross multiply
    21,630.04x = 29,849.58 × 12,677.72
  4. Step 4: Simplify right side
    21,630.04x = 378,424,468.11
  5. Step 5: Solve for x
    x = 378,424,468.11/21,630.04
  6. Step 6: Final answer
    x = 17,495.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.