Home / 30,039.18-45,015.03-14,438.58

Finding the Fourth Proportional to 30,039.18, 45,015.03 and 14,438.58

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Solution

The fourth proportional to 30,039.18, 45,015.03 and 14,438.58 is: 21,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,039.18 : 45,015.03 = 14,438.58 : x
  2. Step 2: Convert to fraction form
    30,039.18/45,015.03 = 14,438.58/x
  3. Step 3: Cross multiply
    30,039.18x = 45,015.03 × 14,438.58
  4. Step 4: Simplify right side
    30,039.18x = 649,953,111.86
  5. Step 5: Solve for x
    x = 649,953,111.86/30,039.18
  6. Step 6: Final answer
    x = 21,636.85

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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.