Home / 21,602.14-29,807.30-12,039.92

Finding the Fourth Proportional to 21,602.14, 29,807.30 and 12,039.92

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Solution

The fourth proportional to 21,602.14, 29,807.30 and 12,039.92 is: 16,613.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.14 : 29,807.30 = 12,039.92 : x
  2. Step 2: Convert to fraction form
    21,602.14/29,807.30 = 12,039.92/x
  3. Step 3: Cross multiply
    21,602.14x = 29,807.30 × 12,039.92
  4. Step 4: Simplify right side
    21,602.14x = 358,877,500.26
  5. Step 5: Solve for x
    x = 358,877,500.26/21,602.14
  6. Step 6: Final answer
    x = 16,613.06

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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.