Home / 20,390.84-30,586.30-16,423.52

Finding the Fourth Proportional to 20,390.84, 30,586.30 and 16,423.52

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Solution

The fourth proportional to 20,390.84, 30,586.30 and 16,423.52 is: 24,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.84 : 30,586.30 = 16,423.52 : x
  2. Step 2: Convert to fraction form
    20,390.84/30,586.30 = 16,423.52/x
  3. Step 3: Cross multiply
    20,390.84x = 30,586.30 × 16,423.52
  4. Step 4: Simplify right side
    20,390.84x = 502,334,709.78
  5. Step 5: Solve for x
    x = 502,334,709.78/20,390.84
  6. Step 6: Final answer
    x = 24,635.31

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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.