Home / 21,369.42-29,484.81-12,417.30

Finding the Fourth Proportional to 21,369.42, 29,484.81 and 12,417.30

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Solution

The fourth proportional to 21,369.42, 29,484.81 and 12,417.30 is: 17,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,369.42 : 29,484.81 = 12,417.30 : x
  2. Step 2: Convert to fraction form
    21,369.42/29,484.81 = 12,417.30/x
  3. Step 3: Cross multiply
    21,369.42x = 29,484.81 × 12,417.30
  4. Step 4: Simplify right side
    21,369.42x = 366,121,731.21
  5. Step 5: Solve for x
    x = 366,121,731.21/21,369.42
  6. Step 6: Final answer
    x = 17,132.97

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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.