Home / 31,297.07-46,931.01-18,153.20

Finding the Fourth Proportional to 31,297.07, 46,931.01 and 18,153.20

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Solution

The fourth proportional to 31,297.07, 46,931.01 and 18,153.20 is: 27,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,297.07 : 46,931.01 = 18,153.20 : x
  2. Step 2: Convert to fraction form
    31,297.07/46,931.01 = 18,153.20/x
  3. Step 3: Cross multiply
    31,297.07x = 46,931.01 × 18,153.20
  4. Step 4: Simplify right side
    31,297.07x = 851,947,776.08
  5. Step 5: Solve for x
    x = 851,947,776.08/31,297.07
  6. Step 6: Final answer
    x = 27,221.33

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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.