Home / 26,729.91-40,068.45-12,665.21

Finding the Fourth Proportional to 26,729.91, 40,068.45 and 12,665.21

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Solution

The fourth proportional to 26,729.91, 40,068.45 and 12,665.21 is: 18,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,729.91 : 40,068.45 = 12,665.21 : x
  2. Step 2: Convert to fraction form
    26,729.91/40,068.45 = 12,665.21/x
  3. Step 3: Cross multiply
    26,729.91x = 40,068.45 × 12,665.21
  4. Step 4: Simplify right side
    26,729.91x = 507,475,133.28
  5. Step 5: Solve for x
    x = 507,475,133.28/26,729.91
  6. Step 6: Final answer
    x = 18,985.29

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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.