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Finding the Fourth Proportional to 30,074.71, 45,111.11 and 14,291.10

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Solution

The fourth proportional to 30,074.71, 45,111.11 and 14,291.10 is: 21,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,074.71 : 45,111.11 = 14,291.10 : x
  2. Step 2: Convert to fraction form
    30,074.71/45,111.11 = 14,291.10/x
  3. Step 3: Cross multiply
    30,074.71x = 45,111.11 × 14,291.10
  4. Step 4: Simplify right side
    30,074.71x = 644,687,384.12
  5. Step 5: Solve for x
    x = 644,687,384.12/30,074.71
  6. Step 6: Final answer
    x = 21,436.20

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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.