Home / 31,499.76-47,002.86-28,190.10

Finding the Fourth Proportional to 31,499.76, 47,002.86 and 28,190.10

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Solution

The fourth proportional to 31,499.76, 47,002.86 and 28,190.10 is: 42,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,499.76 : 47,002.86 = 28,190.10 : x
  2. Step 2: Convert to fraction form
    31,499.76/47,002.86 = 28,190.10/x
  3. Step 3: Cross multiply
    31,499.76x = 47,002.86 × 28,190.10
  4. Step 4: Simplify right side
    31,499.76x = 1,325,015,323.69
  5. Step 5: Solve for x
    x = 1,325,015,323.69/31,499.76
  6. Step 6: Final answer
    x = 42,064.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.