Home / 20,681.64-28,541.22-11,250.84

Finding the Fourth Proportional to 20,681.64, 28,541.22 and 11,250.84

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Solution

The fourth proportional to 20,681.64, 28,541.22 and 11,250.84 is: 15,526.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.64 : 28,541.22 = 11,250.84 : x
  2. Step 2: Convert to fraction form
    20,681.64/28,541.22 = 11,250.84/x
  3. Step 3: Cross multiply
    20,681.64x = 28,541.22 × 11,250.84
  4. Step 4: Simplify right side
    20,681.64x = 321,112,699.62
  5. Step 5: Solve for x
    x = 321,112,699.62/20,681.64
  6. Step 6: Final answer
    x = 15,526.46

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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.