Home / 19,428.90-29,137.17-6,278.16

Finding the Fourth Proportional to 19,428.90, 29,137.17 and 6,278.16

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Solution

The fourth proportional to 19,428.90, 29,137.17 and 6,278.16 is: 9,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.90 : 29,137.17 = 6,278.16 : x
  2. Step 2: Convert to fraction form
    19,428.90/29,137.17 = 6,278.16/x
  3. Step 3: Cross multiply
    19,428.90x = 29,137.17 × 6,278.16
  4. Step 4: Simplify right side
    19,428.90x = 182,927,815.21
  5. Step 5: Solve for x
    x = 182,927,815.21/19,428.90
  6. Step 6: Final answer
    x = 9,415.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.