Home / 23,520.10-32,457.85-12,909.86

Finding the Fourth Proportional to 23,520.10, 32,457.85 and 12,909.86

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Solution

The fourth proportional to 23,520.10, 32,457.85 and 12,909.86 is: 17,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,520.10 : 32,457.85 = 12,909.86 : x
  2. Step 2: Convert to fraction form
    23,520.10/32,457.85 = 12,909.86/x
  3. Step 3: Cross multiply
    23,520.10x = 32,457.85 × 12,909.86
  4. Step 4: Simplify right side
    23,520.10x = 419,026,299.40
  5. Step 5: Solve for x
    x = 419,026,299.40/23,520.10
  6. Step 6: Final answer
    x = 17,815.67

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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.