Home / 39,159.03-54,039.49-21,254.03

Finding the Fourth Proportional to 39,159.03, 54,039.49 and 21,254.03

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Solution

The fourth proportional to 39,159.03, 54,039.49 and 21,254.03 is: 29,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,159.03 : 54,039.49 = 21,254.03 : x
  2. Step 2: Convert to fraction form
    39,159.03/54,039.49 = 21,254.03/x
  3. Step 3: Cross multiply
    39,159.03x = 54,039.49 × 21,254.03
  4. Step 4: Simplify right side
    39,159.03x = 1,148,556,941.64
  5. Step 5: Solve for x
    x = 1,148,556,941.64/39,159.03
  6. Step 6: Final answer
    x = 29,330.58

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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.