Home / 31,971.09-47,950.16-10,899.70

Finding the Fourth Proportional to 31,971.09, 47,950.16 and 10,899.70

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Solution

The fourth proportional to 31,971.09, 47,950.16 and 10,899.70 is: 16,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,971.09 : 47,950.16 = 10,899.70 : x
  2. Step 2: Convert to fraction form
    31,971.09/47,950.16 = 10,899.70/x
  3. Step 3: Cross multiply
    31,971.09x = 47,950.16 × 10,899.70
  4. Step 4: Simplify right side
    31,971.09x = 522,642,454.30
  5. Step 5: Solve for x
    x = 522,642,454.30/31,971.09
  6. Step 6: Final answer
    x = 16,347.35

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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.