Home / 31,211.70-46,817.55-28,101.30

Finding the Fourth Proportional to 31,211.70, 46,817.55 and 28,101.30

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Solution

The fourth proportional to 31,211.70, 46,817.55 and 28,101.30 is: 42,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,211.70 : 46,817.55 = 28,101.30 : x
  2. Step 2: Convert to fraction form
    31,211.70/46,817.55 = 28,101.30/x
  3. Step 3: Cross multiply
    31,211.70x = 46,817.55 × 28,101.30
  4. Step 4: Simplify right side
    31,211.70x = 1,315,634,017.82
  5. Step 5: Solve for x
    x = 1,315,634,017.82/31,211.70
  6. Step 6: Final answer
    x = 42,151.95

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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.