Home / 28,262.34-38,984.76-20,315.34

Finding the Fourth Proportional to 28,262.34, 38,984.76 and 20,315.34

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Solution

The fourth proportional to 28,262.34, 38,984.76 and 20,315.34 is: 28,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.34 : 38,984.76 = 20,315.34 : x
  2. Step 2: Convert to fraction form
    28,262.34/38,984.76 = 20,315.34/x
  3. Step 3: Cross multiply
    28,262.34x = 38,984.76 × 20,315.34
  4. Step 4: Simplify right side
    28,262.34x = 791,988,654.22
  5. Step 5: Solve for x
    x = 791,988,654.22/28,262.34
  6. Step 6: Final answer
    x = 28,022.76

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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.