Home / 31,031.49-42,823.26-16,884.39

Finding the Fourth Proportional to 31,031.49, 42,823.26 and 16,884.39

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Solution

The fourth proportional to 31,031.49, 42,823.26 and 16,884.39 is: 23,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,031.49 : 42,823.26 = 16,884.39 : x
  2. Step 2: Convert to fraction form
    31,031.49/42,823.26 = 16,884.39/x
  3. Step 3: Cross multiply
    31,031.49x = 42,823.26 × 16,884.39
  4. Step 4: Simplify right side
    31,031.49x = 723,044,622.91
  5. Step 5: Solve for x
    x = 723,044,622.91/31,031.49
  6. Step 6: Final answer
    x = 23,300.35

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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.