Home / 19,702.71-27,192.02-10,972.26

Finding the Fourth Proportional to 19,702.71, 27,192.02 and 10,972.26

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Solution

The fourth proportional to 19,702.71, 27,192.02 and 10,972.26 is: 15,142.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.71 : 27,192.02 = 10,972.26 : x
  2. Step 2: Convert to fraction form
    19,702.71/27,192.02 = 10,972.26/x
  3. Step 3: Cross multiply
    19,702.71x = 27,192.02 × 10,972.26
  4. Step 4: Simplify right side
    19,702.71x = 298,357,858.50
  5. Step 5: Solve for x
    x = 298,357,858.50/19,702.71
  6. Step 6: Final answer
    x = 15,142.99

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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.