Home / 30,974.48-42,743.68-16,827.04

Finding the Fourth Proportional to 30,974.48, 42,743.68 and 16,827.04

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Solution

The fourth proportional to 30,974.48, 42,743.68 and 16,827.04 is: 23,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.48 : 42,743.68 = 16,827.04 : x
  2. Step 2: Convert to fraction form
    30,974.48/42,743.68 = 16,827.04/x
  3. Step 3: Cross multiply
    30,974.48x = 42,743.68 × 16,827.04
  4. Step 4: Simplify right side
    30,974.48x = 719,249,613.11
  5. Step 5: Solve for x
    x = 719,249,613.11/30,974.48
  6. Step 6: Final answer
    x = 23,220.72

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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.