Home / 31,202.04-43,077.90-20,310.59

Finding the Fourth Proportional to 31,202.04, 43,077.90 and 20,310.59

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Solution

The fourth proportional to 31,202.04, 43,077.90 and 20,310.59 is: 28,041.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,202.04 : 43,077.90 = 20,310.59 : x
  2. Step 2: Convert to fraction form
    31,202.04/43,077.90 = 20,310.59/x
  3. Step 3: Cross multiply
    31,202.04x = 43,077.90 × 20,310.59
  4. Step 4: Simplify right side
    31,202.04x = 874,937,349.57
  5. Step 5: Solve for x
    x = 874,937,349.57/31,202.04
  6. Step 6: Final answer
    x = 28,041.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.