Home / 19,428.48-26,815.68-11,045.76

Finding the Fourth Proportional to 19,428.48, 26,815.68 and 11,045.76

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Solution

The fourth proportional to 19,428.48, 26,815.68 and 11,045.76 is: 15,245.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.48 : 26,815.68 = 11,045.76 : x
  2. Step 2: Convert to fraction form
    19,428.48/26,815.68 = 11,045.76/x
  3. Step 3: Cross multiply
    19,428.48x = 26,815.68 × 11,045.76
  4. Step 4: Simplify right side
    19,428.48x = 296,199,565.52
  5. Step 5: Solve for x
    x = 296,199,565.52/19,428.48
  6. Step 6: Final answer
    x = 15,245.64

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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.