Home / 14,325.96-21,341.20-13,890.66

Finding the Fourth Proportional to 14,325.96, 21,341.20 and 13,890.66

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Solution

The fourth proportional to 14,325.96, 21,341.20 and 13,890.66 is: 20,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325.96 : 21,341.20 = 13,890.66 : x
  2. Step 2: Convert to fraction form
    14,325.96/21,341.20 = 13,890.66/x
  3. Step 3: Cross multiply
    14,325.96x = 21,341.20 × 13,890.66
  4. Step 4: Simplify right side
    14,325.96x = 296,443,353.19
  5. Step 5: Solve for x
    x = 296,443,353.19/14,325.96
  6. Step 6: Final answer
    x = 20,692.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.