Home / 31,564.38-47,409.60-19,739.19

Finding the Fourth Proportional to 31,564.38, 47,409.60 and 19,739.19

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Solution

The fourth proportional to 31,564.38, 47,409.60 and 19,739.19 is: 29,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,564.38 : 47,409.60 = 19,739.19 : x
  2. Step 2: Convert to fraction form
    31,564.38/47,409.60 = 19,739.19/x
  3. Step 3: Cross multiply
    31,564.38x = 47,409.60 × 19,739.19
  4. Step 4: Simplify right side
    31,564.38x = 935,827,102.22
  5. Step 5: Solve for x
    x = 935,827,102.22/31,564.38
  6. Step 6: Final answer
    x = 29,648.20

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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.