Home / 19,438.08-29,109.60-9,052.80

Finding the Fourth Proportional to 19,438.08, 29,109.60 and 9,052.80

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Solution

The fourth proportional to 19,438.08, 29,109.60 and 9,052.80 is: 13,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.08 : 29,109.60 = 9,052.80 : x
  2. Step 2: Convert to fraction form
    19,438.08/29,109.60 = 9,052.80/x
  3. Step 3: Cross multiply
    19,438.08x = 29,109.60 × 9,052.80
  4. Step 4: Simplify right side
    19,438.08x = 263,523,386.88
  5. Step 5: Solve for x
    x = 263,523,386.88/19,438.08
  6. Step 6: Final answer
    x = 13,557.07

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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.