Home / 13,958.47-21,042.33-13,030.52

Finding the Fourth Proportional to 13,958.47, 21,042.33 and 13,030.52

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Solution

The fourth proportional to 13,958.47, 21,042.33 and 13,030.52 is: 19,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.47 : 21,042.33 = 13,030.52 : x
  2. Step 2: Convert to fraction form
    13,958.47/21,042.33 = 13,030.52/x
  3. Step 3: Cross multiply
    13,958.47x = 21,042.33 × 13,030.52
  4. Step 4: Simplify right side
    13,958.47x = 274,192,347.84
  5. Step 5: Solve for x
    x = 274,192,347.84/13,958.47
  6. Step 6: Final answer
    x = 19,643.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.