Home / 30,537.85-42,144.79-16,929.22

Finding the Fourth Proportional to 30,537.85, 42,144.79 and 16,929.22

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Solution

The fourth proportional to 30,537.85, 42,144.79 and 16,929.22 is: 23,363.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.85 : 42,144.79 = 16,929.22 : x
  2. Step 2: Convert to fraction form
    30,537.85/42,144.79 = 16,929.22/x
  3. Step 3: Cross multiply
    30,537.85x = 42,144.79 × 16,929.22
  4. Step 4: Simplify right side
    30,537.85x = 713,478,421.76
  5. Step 5: Solve for x
    x = 713,478,421.76/30,537.85
  6. Step 6: Final answer
    x = 23,363.74

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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.