Home / 21,250.35-31,838.60-14,911.81

Finding the Fourth Proportional to 21,250.35, 31,838.60 and 14,911.81

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Solution

The fourth proportional to 21,250.35, 31,838.60 and 14,911.81 is: 22,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.35 : 31,838.60 = 14,911.81 : x
  2. Step 2: Convert to fraction form
    21,250.35/31,838.60 = 14,911.81/x
  3. Step 3: Cross multiply
    21,250.35x = 31,838.60 × 14,911.81
  4. Step 4: Simplify right side
    21,250.35x = 474,771,111.55
  5. Step 5: Solve for x
    x = 474,771,111.55/21,250.35
  6. Step 6: Final answer
    x = 22,341.80

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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.