Home / 31,855.02-47,790.66-18,718.44

Finding the Fourth Proportional to 31,855.02, 47,790.66 and 18,718.44

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Solution

The fourth proportional to 31,855.02, 47,790.66 and 18,718.44 is: 28,082.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.02 : 47,790.66 = 18,718.44 : x
  2. Step 2: Convert to fraction form
    31,855.02/47,790.66 = 18,718.44/x
  3. Step 3: Cross multiply
    31,855.02x = 47,790.66 × 18,718.44
  4. Step 4: Simplify right side
    31,855.02x = 894,566,601.77
  5. Step 5: Solve for x
    x = 894,566,601.77/31,855.02
  6. Step 6: Final answer
    x = 28,082.44

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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.