Home / 26,807.22-40,157.10-12,780.86

Finding the Fourth Proportional to 26,807.22, 40,157.10 and 12,780.86

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Solution

The fourth proportional to 26,807.22, 40,157.10 and 12,780.86 is: 19,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,807.22 : 40,157.10 = 12,780.86 : x
  2. Step 2: Convert to fraction form
    26,807.22/40,157.10 = 12,780.86/x
  3. Step 3: Cross multiply
    26,807.22x = 40,157.10 × 12,780.86
  4. Step 4: Simplify right side
    26,807.22x = 513,242,072.32
  5. Step 5: Solve for x
    x = 513,242,072.32/26,807.22
  6. Step 6: Final answer
    x = 19,145.67

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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.