Home / 19,462.40-26,872.96-14,979.20

Finding the Fourth Proportional to 19,462.40, 26,872.96 and 14,979.20

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Solution

The fourth proportional to 19,462.40, 26,872.96 and 14,979.20 is: 20,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,462.40 : 26,872.96 = 14,979.20 : x
  2. Step 2: Convert to fraction form
    19,462.40/26,872.96 = 14,979.20/x
  3. Step 3: Cross multiply
    19,462.40x = 26,872.96 × 14,979.20
  4. Step 4: Simplify right side
    19,462.40x = 402,535,442.43
  5. Step 5: Solve for x
    x = 402,535,442.43/19,462.40
  6. Step 6: Final answer
    x = 20,682.72

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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.