Home / 31,032.87-42,824.10-16,885.41

Finding the Fourth Proportional to 31,032.87, 42,824.10 and 16,885.41

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Solution

The fourth proportional to 31,032.87, 42,824.10 and 16,885.41 is: 23,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,032.87 : 42,824.10 = 16,885.41 : x
  2. Step 2: Convert to fraction form
    31,032.87/42,824.10 = 16,885.41/x
  3. Step 3: Cross multiply
    31,032.87x = 42,824.10 × 16,885.41
  4. Step 4: Simplify right side
    31,032.87x = 723,102,272.26
  5. Step 5: Solve for x
    x = 723,102,272.26/31,032.87
  6. Step 6: Final answer
    x = 23,301.18

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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.