Home / 17,985.82-26,931.14-12,692.02

Finding the Fourth Proportional to 17,985.82, 26,931.14 and 12,692.02

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Solution

The fourth proportional to 17,985.82, 26,931.14 and 12,692.02 is: 19,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.82 : 26,931.14 = 12,692.02 : x
  2. Step 2: Convert to fraction form
    17,985.82/26,931.14 = 12,692.02/x
  3. Step 3: Cross multiply
    17,985.82x = 26,931.14 × 12,692.02
  4. Step 4: Simplify right side
    17,985.82x = 341,810,567.50
  5. Step 5: Solve for x
    x = 341,810,567.50/17,985.82
  6. Step 6: Final answer
    x = 19,004.45

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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.