Home / 31,384.16-43,270.80-22,986.08

Finding the Fourth Proportional to 31,384.16, 43,270.80 and 22,986.08

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Solution

The fourth proportional to 31,384.16, 43,270.80 and 22,986.08 is: 31,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.16 : 43,270.80 = 22,986.08 : x
  2. Step 2: Convert to fraction form
    31,384.16/43,270.80 = 22,986.08/x
  3. Step 3: Cross multiply
    31,384.16x = 43,270.80 × 22,986.08
  4. Step 4: Simplify right side
    31,384.16x = 994,626,070.46
  5. Step 5: Solve for x
    x = 994,626,070.46/31,384.16
  6. Step 6: Final answer
    x = 31,691.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.