Home / 14,415.15-21,620.93-3,885.99

Finding the Fourth Proportional to 14,415.15, 21,620.93 and 3,885.99

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Solution

The fourth proportional to 14,415.15, 21,620.93 and 3,885.99 is: 5,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.15 : 21,620.93 = 3,885.99 : x
  2. Step 2: Convert to fraction form
    14,415.15/21,620.93 = 3,885.99/x
  3. Step 3: Cross multiply
    14,415.15x = 21,620.93 × 3,885.99
  4. Step 4: Simplify right side
    14,415.15x = 84,018,717.77
  5. Step 5: Solve for x
    x = 84,018,717.77/14,415.15
  6. Step 6: Final answer
    x = 5,828.50

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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.