Home / 30,436.90-45,652.10-14,422.57

Finding the Fourth Proportional to 30,436.90, 45,652.10 and 14,422.57

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Solution

The fourth proportional to 30,436.90, 45,652.10 and 14,422.57 is: 21,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.90 : 45,652.10 = 14,422.57 : x
  2. Step 2: Convert to fraction form
    30,436.90/45,652.10 = 14,422.57/x
  3. Step 3: Cross multiply
    30,436.90x = 45,652.10 × 14,422.57
  4. Step 4: Simplify right side
    30,436.90x = 658,420,421.65
  5. Step 5: Solve for x
    x = 658,420,421.65/30,436.90
  6. Step 6: Final answer
    x = 21,632.31

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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.