Home / 31,312.94-43,213.61-18,573.66

Finding the Fourth Proportional to 31,312.94, 43,213.61 and 18,573.66

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Solution

The fourth proportional to 31,312.94, 43,213.61 and 18,573.66 is: 25,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.94 : 43,213.61 = 18,573.66 : x
  2. Step 2: Convert to fraction form
    31,312.94/43,213.61 = 18,573.66/x
  3. Step 3: Cross multiply
    31,312.94x = 43,213.61 × 18,573.66
  4. Step 4: Simplify right side
    31,312.94x = 802,634,945.95
  5. Step 5: Solve for x
    x = 802,634,945.95/31,312.94
  6. Step 6: Final answer
    x = 25,632.70

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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.