Home / 39,238.32-58,857-18,447.12

Finding the Fourth Proportional to 39,238.32, 58,857 and 18,447.12

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Solution

The fourth proportional to 39,238.32, 58,857 and 18,447.12 is: 27,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.32 : 58,857 = 18,447.12 : x
  2. Step 2: Convert to fraction form
    39,238.32/58,857 = 18,447.12/x
  3. Step 3: Cross multiply
    39,238.32x = 58,857 × 18,447.12
  4. Step 4: Simplify right side
    39,238.32x = 1,085,742,141.84
  5. Step 5: Solve for x
    x = 1,085,742,141.84/39,238.32
  6. Step 6: Final answer
    x = 27,670.45

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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.