Home / 20,834.02-28,751.63-11,402.58

Finding the Fourth Proportional to 20,834.02, 28,751.63 and 11,402.58

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Solution

The fourth proportional to 20,834.02, 28,751.63 and 11,402.58 is: 15,735.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.02 : 28,751.63 = 11,402.58 : x
  2. Step 2: Convert to fraction form
    20,834.02/28,751.63 = 11,402.58/x
  3. Step 3: Cross multiply
    20,834.02x = 28,751.63 × 11,402.58
  4. Step 4: Simplify right side
    20,834.02x = 327,842,789.71
  5. Step 5: Solve for x
    x = 327,842,789.71/20,834.02
  6. Step 6: Final answer
    x = 15,735.94

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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.