Home / 31,031.06-42,823.04-16,884

Finding the Fourth Proportional to 31,031.06, 42,823.04 and 16,884

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Solution

The fourth proportional to 31,031.06, 42,823.04 and 16,884 is: 23,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,031.06 : 42,823.04 = 16,884 : x
  2. Step 2: Convert to fraction form
    31,031.06/42,823.04 = 16,884/x
  3. Step 3: Cross multiply
    31,031.06x = 42,823.04 × 16,884
  4. Step 4: Simplify right side
    31,031.06x = 723,024,207.36
  5. Step 5: Solve for x
    x = 723,024,207.36/31,031.06
  6. Step 6: Final answer
    x = 23,300.02

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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.