Home / 19,438.47-26,838-14,954.31

Finding the Fourth Proportional to 19,438.47, 26,838 and 14,954.31

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Solution

The fourth proportional to 19,438.47, 26,838 and 14,954.31 is: 20,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.47 : 26,838 = 14,954.31 : x
  2. Step 2: Convert to fraction form
    19,438.47/26,838 = 14,954.31/x
  3. Step 3: Cross multiply
    19,438.47x = 26,838 × 14,954.31
  4. Step 4: Simplify right side
    19,438.47x = 401,343,771.78
  5. Step 5: Solve for x
    x = 401,343,771.78/19,438.47
  6. Step 6: Final answer
    x = 20,646.88

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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.