Home / 19,428.48-29,146.32-6,280.56

Finding the Fourth Proportional to 19,428.48, 29,146.32 and 6,280.56

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Solution

The fourth proportional to 19,428.48, 29,146.32 and 6,280.56 is: 9,422.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.48 : 29,146.32 = 6,280.56 : x
  2. Step 2: Convert to fraction form
    19,428.48/29,146.32 = 6,280.56/x
  3. Step 3: Cross multiply
    19,428.48x = 29,146.32 × 6,280.56
  4. Step 4: Simplify right side
    19,428.48x = 183,055,211.54
  5. Step 5: Solve for x
    x = 183,055,211.54/19,428.48
  6. Step 6: Final answer
    x = 9,422.00

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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.