Home / 31,507.06-47,237.16-13,734.35

Finding the Fourth Proportional to 31,507.06, 47,237.16 and 13,734.35

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Solution

The fourth proportional to 31,507.06, 47,237.16 and 13,734.35 is: 20,591.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.06 : 47,237.16 = 13,734.35 : x
  2. Step 2: Convert to fraction form
    31,507.06/47,237.16 = 13,734.35/x
  3. Step 3: Cross multiply
    31,507.06x = 47,237.16 × 13,734.35
  4. Step 4: Simplify right side
    31,507.06x = 648,771,688.45
  5. Step 5: Solve for x
    x = 648,771,688.45/31,507.06
  6. Step 6: Final answer
    x = 20,591.31

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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.