Home / 31,031.57-42,824.48-16,885.33

Finding the Fourth Proportional to 31,031.57, 42,824.48 and 16,885.33

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Solution

The fourth proportional to 31,031.57, 42,824.48 and 16,885.33 is: 23,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,031.57 : 42,824.48 = 16,885.33 : x
  2. Step 2: Convert to fraction form
    31,031.57/42,824.48 = 16,885.33/x
  3. Step 3: Cross multiply
    31,031.57x = 42,824.48 × 16,885.33
  4. Step 4: Simplify right side
    31,031.57x = 723,105,476.88
  5. Step 5: Solve for x
    x = 723,105,476.88/31,031.57
  6. Step 6: Final answer
    x = 23,302.25

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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.