Home / 31,389.40-47,040.36-23,589.10

Finding the Fourth Proportional to 31,389.40, 47,040.36 and 23,589.10

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Solution

The fourth proportional to 31,389.40, 47,040.36 and 23,589.10 is: 35,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.40 : 47,040.36 = 23,589.10 : x
  2. Step 2: Convert to fraction form
    31,389.40/47,040.36 = 23,589.10/x
  3. Step 3: Cross multiply
    31,389.40x = 47,040.36 × 23,589.10
  4. Step 4: Simplify right side
    31,389.40x = 1,109,639,756.08
  5. Step 5: Solve for x
    x = 1,109,639,756.08/31,389.40
  6. Step 6: Final answer
    x = 35,350.78

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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.