Home / 28,707.51-43,038.03-8,975.91

Finding the Fourth Proportional to 28,707.51, 43,038.03 and 8,975.91

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Solution

The fourth proportional to 28,707.51, 43,038.03 and 8,975.91 is: 13,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.51 : 43,038.03 = 8,975.91 : x
  2. Step 2: Convert to fraction form
    28,707.51/43,038.03 = 8,975.91/x
  3. Step 3: Cross multiply
    28,707.51x = 43,038.03 × 8,975.91
  4. Step 4: Simplify right side
    28,707.51x = 386,305,483.86
  5. Step 5: Solve for x
    x = 386,305,483.86/28,707.51
  6. Step 6: Final answer
    x = 13,456.60

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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.