Home / 30,374.06-45,524.15-21,491.95

Finding the Fourth Proportional to 30,374.06, 45,524.15 and 21,491.95

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Solution

The fourth proportional to 30,374.06, 45,524.15 and 21,491.95 is: 32,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.06 : 45,524.15 = 21,491.95 : x
  2. Step 2: Convert to fraction form
    30,374.06/45,524.15 = 21,491.95/x
  3. Step 3: Cross multiply
    30,374.06x = 45,524.15 × 21,491.95
  4. Step 4: Simplify right side
    30,374.06x = 978,402,420.51
  5. Step 5: Solve for x
    x = 978,402,420.51/30,374.06
  6. Step 6: Final answer
    x = 32,211.78

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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.