Home / 19,505.51-29,274.67-18,275.32

Finding the Fourth Proportional to 19,505.51, 29,274.67 and 18,275.32

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Solution

The fourth proportional to 19,505.51, 29,274.67 and 18,275.32 is: 27,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.51 : 29,274.67 = 18,275.32 : x
  2. Step 2: Convert to fraction form
    19,505.51/29,274.67 = 18,275.32/x
  3. Step 3: Cross multiply
    19,505.51x = 29,274.67 × 18,275.32
  4. Step 4: Simplify right side
    19,505.51x = 535,004,021.58
  5. Step 5: Solve for x
    x = 535,004,021.58/19,505.51
  6. Step 6: Final answer
    x = 27,428.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.