Home / 19,795.76-29,688.45-7,319.36

Finding the Fourth Proportional to 19,795.76, 29,688.45 and 7,319.36

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Solution

The fourth proportional to 19,795.76, 29,688.45 and 7,319.36 is: 10,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.76 : 29,688.45 = 7,319.36 : x
  2. Step 2: Convert to fraction form
    19,795.76/29,688.45 = 7,319.36/x
  3. Step 3: Cross multiply
    19,795.76x = 29,688.45 × 7,319.36
  4. Step 4: Simplify right side
    19,795.76x = 217,300,304.95
  5. Step 5: Solve for x
    x = 217,300,304.95/19,795.76
  6. Step 6: Final answer
    x = 10,977.11

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1.5x scale

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.