Home / 20,602.17-28,429.38-11,527.47

Finding the Fourth Proportional to 20,602.17, 28,429.38 and 11,527.47

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Solution

The fourth proportional to 20,602.17, 28,429.38 and 11,527.47 is: 15,907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,602.17 : 28,429.38 = 11,527.47 : x
  2. Step 2: Convert to fraction form
    20,602.17/28,429.38 = 11,527.47/x
  3. Step 3: Cross multiply
    20,602.17x = 28,429.38 × 11,527.47
  4. Step 4: Simplify right side
    20,602.17x = 327,718,825.07
  5. Step 5: Solve for x
    x = 327,718,825.07/20,602.17
  6. Step 6: Final answer
    x = 15,907.01

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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.