Home / 21,913.47-30,234.47-14,753.48

Finding the Fourth Proportional to 21,913.47, 30,234.47 and 14,753.48

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Solution

The fourth proportional to 21,913.47, 30,234.47 and 14,753.48 is: 20,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.47 : 30,234.47 = 14,753.48 : x
  2. Step 2: Convert to fraction form
    21,913.47/30,234.47 = 14,753.48/x
  3. Step 3: Cross multiply
    21,913.47x = 30,234.47 × 14,753.48
  4. Step 4: Simplify right side
    21,913.47x = 446,063,423.52
  5. Step 5: Solve for x
    x = 446,063,423.52/21,913.47
  6. Step 6: Final answer
    x = 20,355.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.