Home / 31,485.27-47,240.46-30,987.66

Finding the Fourth Proportional to 31,485.27, 47,240.46 and 30,987.66

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Solution

The fourth proportional to 31,485.27, 47,240.46 and 30,987.66 is: 46,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.27 : 47,240.46 = 30,987.66 : x
  2. Step 2: Convert to fraction form
    31,485.27/47,240.46 = 30,987.66/x
  3. Step 3: Cross multiply
    31,485.27x = 47,240.46 × 30,987.66
  4. Step 4: Simplify right side
    31,485.27x = 1,463,871,312.72
  5. Step 5: Solve for x
    x = 1,463,871,312.72/31,485.27
  6. Step 6: Final answer
    x = 46,493.85

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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.