Home / 21,434.02-29,579.16-11,874.19

Finding the Fourth Proportional to 21,434.02, 29,579.16 and 11,874.19

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Solution

The fourth proportional to 21,434.02, 29,579.16 and 11,874.19 is: 16,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.02 : 29,579.16 = 11,874.19 : x
  2. Step 2: Convert to fraction form
    21,434.02/29,579.16 = 11,874.19/x
  3. Step 3: Cross multiply
    21,434.02x = 29,579.16 × 11,874.19
  4. Step 4: Simplify right side
    21,434.02x = 351,228,565.88
  5. Step 5: Solve for x
    x = 351,228,565.88/21,434.02
  6. Step 6: Final answer
    x = 16,386.50

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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.