Home / 31,008.30-46,512.45-28,286.70

Finding the Fourth Proportional to 31,008.30, 46,512.45 and 28,286.70

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Solution

The fourth proportional to 31,008.30, 46,512.45 and 28,286.70 is: 42,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008.30 : 46,512.45 = 28,286.70 : x
  2. Step 2: Convert to fraction form
    31,008.30/46,512.45 = 28,286.70/x
  3. Step 3: Cross multiply
    31,008.30x = 46,512.45 × 28,286.70
  4. Step 4: Simplify right side
    31,008.30x = 1,315,683,719.42
  5. Step 5: Solve for x
    x = 1,315,683,719.42/31,008.30
  6. Step 6: Final answer
    x = 42,430.05

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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.