Home / 31,146.60-46,692.11-11,420.55

Finding the Fourth Proportional to 31,146.60, 46,692.11 and 11,420.55

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Solution

The fourth proportional to 31,146.60, 46,692.11 and 11,420.55 is: 17,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,146.60 : 46,692.11 = 11,420.55 : x
  2. Step 2: Convert to fraction form
    31,146.60/46,692.11 = 11,420.55/x
  3. Step 3: Cross multiply
    31,146.60x = 46,692.11 × 11,420.55
  4. Step 4: Simplify right side
    31,146.60x = 533,249,519.76
  5. Step 5: Solve for x
    x = 533,249,519.76/31,146.60
  6. Step 6: Final answer
    x = 17,120.63

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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.