Home / 31,032.64-42,823.77-16,885.49

Finding the Fourth Proportional to 31,032.64, 42,823.77 and 16,885.49

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Solution

The fourth proportional to 31,032.64, 42,823.77 and 16,885.49 is: 23,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,032.64 : 42,823.77 = 16,885.49 : x
  2. Step 2: Convert to fraction form
    31,032.64/42,823.77 = 16,885.49/x
  3. Step 3: Cross multiply
    31,032.64x = 42,823.77 × 16,885.49
  4. Step 4: Simplify right side
    31,032.64x = 723,100,340.10
  5. Step 5: Solve for x
    x = 723,100,340.10/31,032.64
  6. Step 6: Final answer
    x = 23,301.28

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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.