Home / 21,358.21-32,026.83-12,475.77

Finding the Fourth Proportional to 21,358.21, 32,026.83 and 12,475.77

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Solution

The fourth proportional to 21,358.21, 32,026.83 and 12,475.77 is: 18,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.21 : 32,026.83 = 12,475.77 : x
  2. Step 2: Convert to fraction form
    21,358.21/32,026.83 = 12,475.77/x
  3. Step 3: Cross multiply
    21,358.21x = 32,026.83 × 12,475.77
  4. Step 4: Simplify right side
    21,358.21x = 399,559,204.77
  5. Step 5: Solve for x
    x = 399,559,204.77/21,358.21
  6. Step 6: Final answer
    x = 18,707.53

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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.