Home / 19,795.12-29,688-5,751.40

Finding the Fourth Proportional to 19,795.12, 29,688 and 5,751.40

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Solution

The fourth proportional to 19,795.12, 29,688 and 5,751.40 is: 8,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.12 : 29,688 = 5,751.40 : x
  2. Step 2: Convert to fraction form
    19,795.12/29,688 = 5,751.40/x
  3. Step 3: Cross multiply
    19,795.12x = 29,688 × 5,751.40
  4. Step 4: Simplify right side
    19,795.12x = 170,747,563.20
  5. Step 5: Solve for x
    x = 170,747,563.20/19,795.12
  6. Step 6: Final answer
    x = 8,625.74

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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.