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Finding the Fourth Proportional to 30,281.01, 45,421.71 and 10,559.49

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Solution

The fourth proportional to 30,281.01, 45,421.71 and 10,559.49 is: 15,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.01 : 45,421.71 = 10,559.49 : x
  2. Step 2: Convert to fraction form
    30,281.01/45,421.71 = 10,559.49/x
  3. Step 3: Cross multiply
    30,281.01x = 45,421.71 × 10,559.49
  4. Step 4: Simplify right side
    30,281.01x = 479,630,092.53
  5. Step 5: Solve for x
    x = 479,630,092.53/30,281.01
  6. Step 6: Final answer
    x = 15,839.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.