Home / 28,143.48-38,845.68-17,526.84

Finding the Fourth Proportional to 28,143.48, 38,845.68 and 17,526.84

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Solution

The fourth proportional to 28,143.48, 38,845.68 and 17,526.84 is: 24,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143.48 : 38,845.68 = 17,526.84 : x
  2. Step 2: Convert to fraction form
    28,143.48/38,845.68 = 17,526.84/x
  3. Step 3: Cross multiply
    28,143.48x = 38,845.68 × 17,526.84
  4. Step 4: Simplify right side
    28,143.48x = 680,842,018.05
  5. Step 5: Solve for x
    x = 680,842,018.05/28,143.48
  6. Step 6: Final answer
    x = 24,191.82

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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.