Home / 31,437.99-47,155.74-10,661.49

Finding the Fourth Proportional to 31,437.99, 47,155.74 and 10,661.49

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Solution

The fourth proportional to 31,437.99, 47,155.74 and 10,661.49 is: 15,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437.99 : 47,155.74 = 10,661.49 : x
  2. Step 2: Convert to fraction form
    31,437.99/47,155.74 = 10,661.49/x
  3. Step 3: Cross multiply
    31,437.99x = 47,155.74 × 10,661.49
  4. Step 4: Simplify right side
    31,437.99x = 502,750,450.45
  5. Step 5: Solve for x
    x = 502,750,450.45/31,437.99
  6. Step 6: Final answer
    x = 15,991.81

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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.