Home / 31,726.36-47,589.90-10,945

Finding the Fourth Proportional to 31,726.36, 47,589.90 and 10,945

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Solution

The fourth proportional to 31,726.36, 47,589.90 and 10,945 is: 16,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.36 : 47,589.90 = 10,945 : x
  2. Step 2: Convert to fraction form
    31,726.36/47,589.90 = 10,945/x
  3. Step 3: Cross multiply
    31,726.36x = 47,589.90 × 10,945
  4. Step 4: Simplify right side
    31,726.36x = 520,871,455.50
  5. Step 5: Solve for x
    x = 520,871,455.50/31,726.36
  6. Step 6: Final answer
    x = 16,417.62

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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.