Home / 32,638.08-45,041.40-18,491.88

Finding the Fourth Proportional to 32,638.08, 45,041.40 and 18,491.88

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Solution

The fourth proportional to 32,638.08, 45,041.40 and 18,491.88 is: 25,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,638.08 : 45,041.40 = 18,491.88 : x
  2. Step 2: Convert to fraction form
    32,638.08/45,041.40 = 18,491.88/x
  3. Step 3: Cross multiply
    32,638.08x = 45,041.40 × 18,491.88
  4. Step 4: Simplify right side
    32,638.08x = 832,900,163.83
  5. Step 5: Solve for x
    x = 832,900,163.83/32,638.08
  6. Step 6: Final answer
    x = 25,519.28

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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.