Home / 31,032.49-42,824.64-16,885.39

Finding the Fourth Proportional to 31,032.49, 42,824.64 and 16,885.39

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Solution

The fourth proportional to 31,032.49, 42,824.64 and 16,885.39 is: 23,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,032.49 : 42,824.64 = 16,885.39 : x
  2. Step 2: Convert to fraction form
    31,032.49/42,824.64 = 16,885.39/x
  3. Step 3: Cross multiply
    31,032.49x = 42,824.64 × 16,885.39
  4. Step 4: Simplify right side
    31,032.49x = 723,110,748.01
  5. Step 5: Solve for x
    x = 723,110,748.01/31,032.49
  6. Step 6: Final answer
    x = 23,301.73

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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.