Home / 28,501.29-42,749.78-10,020.33

Finding the Fourth Proportional to 28,501.29, 42,749.78 and 10,020.33

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Solution

The fourth proportional to 28,501.29, 42,749.78 and 10,020.33 is: 15,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.29 : 42,749.78 = 10,020.33 : x
  2. Step 2: Convert to fraction form
    28,501.29/42,749.78 = 10,020.33/x
  3. Step 3: Cross multiply
    28,501.29x = 42,749.78 × 10,020.33
  4. Step 4: Simplify right side
    28,501.29x = 428,366,852.93
  5. Step 5: Solve for x
    x = 428,366,852.93/28,501.29
  6. Step 6: Final answer
    x = 15,029.74

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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.