Home / 32,751.50-45,204.36-20,812.51

Finding the Fourth Proportional to 32,751.50, 45,204.36 and 20,812.51

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Solution

The fourth proportional to 32,751.50, 45,204.36 and 20,812.51 is: 28,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,751.50 : 45,204.36 = 20,812.51 : x
  2. Step 2: Convert to fraction form
    32,751.50/45,204.36 = 20,812.51/x
  3. Step 3: Cross multiply
    32,751.50x = 45,204.36 × 20,812.51
  4. Step 4: Simplify right side
    32,751.50x = 940,815,968.52
  5. Step 5: Solve for x
    x = 940,815,968.52/32,751.50
  6. Step 6: Final answer
    x = 28,725.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.