Home / 19,729.31-27,225.45-10,775.16

Finding the Fourth Proportional to 19,729.31, 27,225.45 and 10,775.16

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Solution

The fourth proportional to 19,729.31, 27,225.45 and 10,775.16 is: 14,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.31 : 27,225.45 = 10,775.16 : x
  2. Step 2: Convert to fraction form
    19,729.31/27,225.45 = 10,775.16/x
  3. Step 3: Cross multiply
    19,729.31x = 27,225.45 × 10,775.16
  4. Step 4: Simplify right side
    19,729.31x = 293,358,579.82
  5. Step 5: Solve for x
    x = 293,358,579.82/19,729.31
  6. Step 6: Final answer
    x = 14,869.18

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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.