Home / 31,389.81-43,317.23-17,242.35

Finding the Fourth Proportional to 31,389.81, 43,317.23 and 17,242.35

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Solution

The fourth proportional to 31,389.81, 43,317.23 and 17,242.35 is: 23,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.81 : 43,317.23 = 17,242.35 : x
  2. Step 2: Convert to fraction form
    31,389.81/43,317.23 = 17,242.35/x
  3. Step 3: Cross multiply
    31,389.81x = 43,317.23 × 17,242.35
  4. Step 4: Simplify right side
    31,389.81x = 746,890,754.48
  5. Step 5: Solve for x
    x = 746,890,754.48/31,389.81
  6. Step 6: Final answer
    x = 23,794.05

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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.