Home / 28,751.90-43,129.67-9,031.23

Finding the Fourth Proportional to 28,751.90, 43,129.67 and 9,031.23

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Solution

The fourth proportional to 28,751.90, 43,129.67 and 9,031.23 is: 13,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.90 : 43,129.67 = 9,031.23 : x
  2. Step 2: Convert to fraction form
    28,751.90/43,129.67 = 9,031.23/x
  3. Step 3: Cross multiply
    28,751.90x = 43,129.67 × 9,031.23
  4. Step 4: Simplify right side
    28,751.90x = 389,513,924.44
  5. Step 5: Solve for x
    x = 389,513,924.44/28,751.90
  6. Step 6: Final answer
    x = 13,547.42

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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.