Home / 19,731.94-27,229.64-10,779.49

Finding the Fourth Proportional to 19,731.94, 27,229.64 and 10,779.49

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Solution

The fourth proportional to 19,731.94, 27,229.64 and 10,779.49 is: 14,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.94 : 27,229.64 = 10,779.49 : x
  2. Step 2: Convert to fraction form
    19,731.94/27,229.64 = 10,779.49/x
  3. Step 3: Cross multiply
    19,731.94x = 27,229.64 × 10,779.49
  4. Step 4: Simplify right side
    19,731.94x = 293,521,442.04
  5. Step 5: Solve for x
    x = 293,521,442.04/19,731.94
  6. Step 6: Final answer
    x = 14,875.45

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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.