Home / 31,515.72-43,490.84-17,368.56

Finding the Fourth Proportional to 31,515.72, 43,490.84 and 17,368.56

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Solution

The fourth proportional to 31,515.72, 43,490.84 and 17,368.56 is: 23,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.72 : 43,490.84 = 17,368.56 : x
  2. Step 2: Convert to fraction form
    31,515.72/43,490.84 = 17,368.56/x
  3. Step 3: Cross multiply
    31,515.72x = 43,490.84 × 17,368.56
  4. Step 4: Simplify right side
    31,515.72x = 755,373,263.99
  5. Step 5: Solve for x
    x = 755,373,263.99/31,515.72
  6. Step 6: Final answer
    x = 23,968.14

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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.