Home / 14,280.47-21,420.09-3,892.22

Finding the Fourth Proportional to 14,280.47, 21,420.09 and 3,892.22

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Solution

The fourth proportional to 14,280.47, 21,420.09 and 3,892.22 is: 5,838.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.47 : 21,420.09 = 3,892.22 : x
  2. Step 2: Convert to fraction form
    14,280.47/21,420.09 = 3,892.22/x
  3. Step 3: Cross multiply
    14,280.47x = 21,420.09 × 3,892.22
  4. Step 4: Simplify right side
    14,280.47x = 83,371,702.70
  5. Step 5: Solve for x
    x = 83,371,702.70/14,280.47
  6. Step 6: Final answer
    x = 5,838.16

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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.