Home / 31,564.80-47,347.20-9,381.60

Finding the Fourth Proportional to 31,564.80, 47,347.20 and 9,381.60

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Solution

The fourth proportional to 31,564.80, 47,347.20 and 9,381.60 is: 14,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,564.80 : 47,347.20 = 9,381.60 : x
  2. Step 2: Convert to fraction form
    31,564.80/47,347.20 = 9,381.60/x
  3. Step 3: Cross multiply
    31,564.80x = 47,347.20 × 9,381.60
  4. Step 4: Simplify right side
    31,564.80x = 444,192,491.52
  5. Step 5: Solve for x
    x = 444,192,491.52/31,564.80
  6. Step 6: Final answer
    x = 14,072.40

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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.