Home / 31,350.70-47,038.29-13,808.23

Finding the Fourth Proportional to 31,350.70, 47,038.29 and 13,808.23

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Solution

The fourth proportional to 31,350.70, 47,038.29 and 13,808.23 is: 20,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,350.70 : 47,038.29 = 13,808.23 : x
  2. Step 2: Convert to fraction form
    31,350.70/47,038.29 = 13,808.23/x
  3. Step 3: Cross multiply
    31,350.70x = 47,038.29 × 13,808.23
  4. Step 4: Simplify right side
    31,350.70x = 649,515,527.13
  5. Step 5: Solve for x
    x = 649,515,527.13/31,350.70
  6. Step 6: Final answer
    x = 20,717.74

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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.