Home / 31,151.40-46,727.10-18,709.80

Finding the Fourth Proportional to 31,151.40, 46,727.10 and 18,709.80

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Solution

The fourth proportional to 31,151.40, 46,727.10 and 18,709.80 is: 28,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,151.40 : 46,727.10 = 18,709.80 : x
  2. Step 2: Convert to fraction form
    31,151.40/46,727.10 = 18,709.80/x
  3. Step 3: Cross multiply
    31,151.40x = 46,727.10 × 18,709.80
  4. Step 4: Simplify right side
    31,151.40x = 874,254,695.58
  5. Step 5: Solve for x
    x = 874,254,695.58/31,151.40
  6. Step 6: Final answer
    x = 28,064.70

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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.