Home / 38,664.64-58,008-18,948.96

Finding the Fourth Proportional to 38,664.64, 58,008 and 18,948.96

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Solution

The fourth proportional to 38,664.64, 58,008 and 18,948.96 is: 28,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.64 : 58,008 = 18,948.96 : x
  2. Step 2: Convert to fraction form
    38,664.64/58,008 = 18,948.96/x
  3. Step 3: Cross multiply
    38,664.64x = 58,008 × 18,948.96
  4. Step 4: Simplify right side
    38,664.64x = 1,099,191,271.68
  5. Step 5: Solve for x
    x = 1,099,191,271.68/38,664.64
  6. Step 6: Final answer
    x = 28,428.85

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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.