Home / 30,311.19-45,486.18-14,720.31

Finding the Fourth Proportional to 30,311.19, 45,486.18 and 14,720.31

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Solution

The fourth proportional to 30,311.19, 45,486.18 and 14,720.31 is: 22,089.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,311.19 : 45,486.18 = 14,720.31 : x
  2. Step 2: Convert to fraction form
    30,311.19/45,486.18 = 14,720.31/x
  3. Step 3: Cross multiply
    30,311.19x = 45,486.18 × 14,720.31
  4. Step 4: Simplify right side
    30,311.19x = 669,570,670.32
  5. Step 5: Solve for x
    x = 669,570,670.32/30,311.19
  6. Step 6: Final answer
    x = 22,089.88

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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.