Home / 19,888.56-27,445.68-10,935.36

Finding the Fourth Proportional to 19,888.56, 27,445.68 and 10,935.36

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Solution

The fourth proportional to 19,888.56, 27,445.68 and 10,935.36 is: 15,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.56 : 27,445.68 = 10,935.36 : x
  2. Step 2: Convert to fraction form
    19,888.56/27,445.68 = 10,935.36/x
  3. Step 3: Cross multiply
    19,888.56x = 27,445.68 × 10,935.36
  4. Step 4: Simplify right side
    19,888.56x = 300,128,391.24
  5. Step 5: Solve for x
    x = 300,128,391.24/19,888.56
  6. Step 6: Final answer
    x = 15,090.50

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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.