Home / 20,476.17-28,254.83-11,526.75

Finding the Fourth Proportional to 20,476.17, 28,254.83 and 11,526.75

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Solution

The fourth proportional to 20,476.17, 28,254.83 and 11,526.75 is: 15,905.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.17 : 28,254.83 = 11,526.75 : x
  2. Step 2: Convert to fraction form
    20,476.17/28,254.83 = 11,526.75/x
  3. Step 3: Cross multiply
    20,476.17x = 28,254.83 × 11,526.75
  4. Step 4: Simplify right side
    20,476.17x = 325,686,304.07
  5. Step 5: Solve for x
    x = 325,686,304.07/20,476.17
  6. Step 6: Final answer
    x = 15,905.63

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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.