Home / 32,638.78-45,039.07-18,491.32

Finding the Fourth Proportional to 32,638.78, 45,039.07 and 18,491.32

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Solution

The fourth proportional to 32,638.78, 45,039.07 and 18,491.32 is: 25,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,638.78 : 45,039.07 = 18,491.32 : x
  2. Step 2: Convert to fraction form
    32,638.78/45,039.07 = 18,491.32/x
  3. Step 3: Cross multiply
    32,638.78x = 45,039.07 × 18,491.32
  4. Step 4: Simplify right side
    32,638.78x = 832,831,935.29
  5. Step 5: Solve for x
    x = 832,831,935.29/32,638.78
  6. Step 6: Final answer
    x = 25,516.64

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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.