Home / 28,043.11-38,678.47-19,545.67

Finding the Fourth Proportional to 28,043.11, 38,678.47 and 19,545.67

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Solution

The fourth proportional to 28,043.11, 38,678.47 and 19,545.67 is: 26,958.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.11 : 38,678.47 = 19,545.67 : x
  2. Step 2: Convert to fraction form
    28,043.11/38,678.47 = 19,545.67/x
  3. Step 3: Cross multiply
    28,043.11x = 38,678.47 × 19,545.67
  4. Step 4: Simplify right side
    28,043.11x = 755,996,610.72
  5. Step 5: Solve for x
    x = 755,996,610.72/28,043.11
  6. Step 6: Final answer
    x = 26,958.37

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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.