Home / 19,051.20-26,438.40-18,273.60

Finding the Fourth Proportional to 19,051.20, 26,438.40 and 18,273.60

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Solution

The fourth proportional to 19,051.20, 26,438.40 and 18,273.60 is: 25,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,051.20 : 26,438.40 = 18,273.60 : x
  2. Step 2: Convert to fraction form
    19,051.20/26,438.40 = 18,273.60/x
  3. Step 3: Cross multiply
    19,051.20x = 26,438.40 × 18,273.60
  4. Step 4: Simplify right side
    19,051.20x = 483,124,746.24
  5. Step 5: Solve for x
    x = 483,124,746.24/19,051.20
  6. Step 6: Final answer
    x = 25,359.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.