Home / 31,343.60-47,008.04-18,696.89

Finding the Fourth Proportional to 31,343.60, 47,008.04 and 18,696.89

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Solution

The fourth proportional to 31,343.60, 47,008.04 and 18,696.89 is: 28,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.60 : 47,008.04 = 18,696.89 : x
  2. Step 2: Convert to fraction form
    31,343.60/47,008.04 = 18,696.89/x
  3. Step 3: Cross multiply
    31,343.60x = 47,008.04 × 18,696.89
  4. Step 4: Simplify right side
    31,343.60x = 878,903,824.47
  5. Step 5: Solve for x
    x = 878,903,824.47/31,343.60
  6. Step 6: Final answer
    x = 28,040.94

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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.