Home / 31,606.79-47,410.16-9,419.59

Finding the Fourth Proportional to 31,606.79, 47,410.16 and 9,419.59

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Solution

The fourth proportional to 31,606.79, 47,410.16 and 9,419.59 is: 14,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,606.79 : 47,410.16 = 9,419.59 : x
  2. Step 2: Convert to fraction form
    31,606.79/47,410.16 = 9,419.59/x
  3. Step 3: Cross multiply
    31,606.79x = 47,410.16 × 9,419.59
  4. Step 4: Simplify right side
    31,606.79x = 446,584,281.20
  5. Step 5: Solve for x
    x = 446,584,281.20/31,606.79
  6. Step 6: Final answer
    x = 14,129.38

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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.