Home / 19,804.50-27,330.75-11,421.54

Finding the Fourth Proportional to 19,804.50, 27,330.75 and 11,421.54

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Solution

The fourth proportional to 19,804.50, 27,330.75 and 11,421.54 is: 15,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.50 : 27,330.75 = 11,421.54 : x
  2. Step 2: Convert to fraction form
    19,804.50/27,330.75 = 11,421.54/x
  3. Step 3: Cross multiply
    19,804.50x = 27,330.75 × 11,421.54
  4. Step 4: Simplify right side
    19,804.50x = 312,159,254.36
  5. Step 5: Solve for x
    x = 312,159,254.36/19,804.50
  6. Step 6: Final answer
    x = 15,762.04

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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.