Home / 42,972.76-64,403.74-19,263

Finding the Fourth Proportional to 42,972.76, 64,403.74 and 19,263

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Solution

The fourth proportional to 42,972.76, 64,403.74 and 19,263 is: 28,869.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,972.76 : 64,403.74 = 19,263 : x
  2. Step 2: Convert to fraction form
    42,972.76/64,403.74 = 19,263/x
  3. Step 3: Cross multiply
    42,972.76x = 64,403.74 × 19,263
  4. Step 4: Simplify right side
    42,972.76x = 1,240,609,243.62
  5. Step 5: Solve for x
    x = 1,240,609,243.62/42,972.76
  6. Step 6: Final answer
    x = 28,869.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.