Home / 31,120.23-46,565.49-18,649.05

Finding the Fourth Proportional to 31,120.23, 46,565.49 and 18,649.05

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Solution

The fourth proportional to 31,120.23, 46,565.49 and 18,649.05 is: 27,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.23 : 46,565.49 = 18,649.05 : x
  2. Step 2: Convert to fraction form
    31,120.23/46,565.49 = 18,649.05/x
  3. Step 3: Cross multiply
    31,120.23x = 46,565.49 × 18,649.05
  4. Step 4: Simplify right side
    31,120.23x = 868,402,151.28
  5. Step 5: Solve for x
    x = 868,402,151.28/31,120.23
  6. Step 6: Final answer
    x = 27,904.75

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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.