Home / 21,360.69-29,473.24-12,403.56

Finding the Fourth Proportional to 21,360.69, 29,473.24 and 12,403.56

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Solution

The fourth proportional to 21,360.69, 29,473.24 and 12,403.56 is: 17,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.69 : 29,473.24 = 12,403.56 : x
  2. Step 2: Convert to fraction form
    21,360.69/29,473.24 = 12,403.56/x
  3. Step 3: Cross multiply
    21,360.69x = 29,473.24 × 12,403.56
  4. Step 4: Simplify right side
    21,360.69x = 365,572,989.71
  5. Step 5: Solve for x
    x = 365,572,989.71/21,360.69
  6. Step 6: Final answer
    x = 17,114.29

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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.