Home / 19,779.93-29,663.69-5,740.92

Finding the Fourth Proportional to 19,779.93, 29,663.69 and 5,740.92

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Solution

The fourth proportional to 19,779.93, 29,663.69 and 5,740.92 is: 8,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.93 : 29,663.69 = 5,740.92 : x
  2. Step 2: Convert to fraction form
    19,779.93/29,663.69 = 5,740.92/x
  3. Step 3: Cross multiply
    19,779.93x = 29,663.69 × 5,740.92
  4. Step 4: Simplify right side
    19,779.93x = 170,296,871.19
  5. Step 5: Solve for x
    x = 170,296,871.19/19,779.93
  6. Step 6: Final answer
    x = 8,609.58

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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.