Home / 19,320.08-26,673.48-18,128.72

Finding the Fourth Proportional to 19,320.08, 26,673.48 and 18,128.72

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Solution

The fourth proportional to 19,320.08, 26,673.48 and 18,128.72 is: 25,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.08 : 26,673.48 = 18,128.72 : x
  2. Step 2: Convert to fraction form
    19,320.08/26,673.48 = 18,128.72/x
  3. Step 3: Cross multiply
    19,320.08x = 26,673.48 × 18,128.72
  4. Step 4: Simplify right side
    19,320.08x = 483,556,050.35
  5. Step 5: Solve for x
    x = 483,556,050.35/19,320.08
  6. Step 6: Final answer
    x = 25,028.68

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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.