Home / 31,619.33-47,432.16-9,130.56

Finding the Fourth Proportional to 31,619.33, 47,432.16 and 9,130.56

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Solution

The fourth proportional to 31,619.33, 47,432.16 and 9,130.56 is: 13,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.33 : 47,432.16 = 9,130.56 : x
  2. Step 2: Convert to fraction form
    31,619.33/47,432.16 = 9,130.56/x
  3. Step 3: Cross multiply
    31,619.33x = 47,432.16 × 9,130.56
  4. Step 4: Simplify right side
    31,619.33x = 433,082,182.81
  5. Step 5: Solve for x
    x = 433,082,182.81/31,619.33
  6. Step 6: Final answer
    x = 13,696.76

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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.