Home / 21,032.37-31,544.10-7,885.71

Finding the Fourth Proportional to 21,032.37, 31,544.10 and 7,885.71

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Solution

The fourth proportional to 21,032.37, 31,544.10 and 7,885.71 is: 11,826.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.37 : 31,544.10 = 7,885.71 : x
  2. Step 2: Convert to fraction form
    21,032.37/31,544.10 = 7,885.71/x
  3. Step 3: Cross multiply
    21,032.37x = 31,544.10 × 7,885.71
  4. Step 4: Simplify right side
    21,032.37x = 248,747,624.81
  5. Step 5: Solve for x
    x = 248,747,624.81/21,032.37
  6. Step 6: Final answer
    x = 11,826.89

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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.