Home / 28,243.09-42,316.03-19,908.19

Finding the Fourth Proportional to 28,243.09, 42,316.03 and 19,908.19

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Solution

The fourth proportional to 28,243.09, 42,316.03 and 19,908.19 is: 29,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.09 : 42,316.03 = 19,908.19 : x
  2. Step 2: Convert to fraction form
    28,243.09/42,316.03 = 19,908.19/x
  3. Step 3: Cross multiply
    28,243.09x = 42,316.03 × 19,908.19
  4. Step 4: Simplify right side
    28,243.09x = 842,435,565.29
  5. Step 5: Solve for x
    x = 842,435,565.29/28,243.09
  6. Step 6: Final answer
    x = 29,828.02

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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.