Home / 28,343.56-42,515.64-11,692.12

Finding the Fourth Proportional to 28,343.56, 42,515.64 and 11,692.12

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Solution

The fourth proportional to 28,343.56, 42,515.64 and 11,692.12 is: 17,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.56 : 42,515.64 = 11,692.12 : x
  2. Step 2: Convert to fraction form
    28,343.56/42,515.64 = 11,692.12/x
  3. Step 3: Cross multiply
    28,343.56x = 42,515.64 × 11,692.12
  4. Step 4: Simplify right side
    28,343.56x = 497,097,964.76
  5. Step 5: Solve for x
    x = 497,097,964.76/28,343.56
  6. Step 6: Final answer
    x = 17,538.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.