Home / 28,514.09-42,798.83-20,667.08

Finding the Fourth Proportional to 28,514.09, 42,798.83 and 20,667.08

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Solution

The fourth proportional to 28,514.09, 42,798.83 and 20,667.08 is: 31,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.09 : 42,798.83 = 20,667.08 : x
  2. Step 2: Convert to fraction form
    28,514.09/42,798.83 = 20,667.08/x
  3. Step 3: Cross multiply
    28,514.09x = 42,798.83 × 20,667.08
  4. Step 4: Simplify right side
    28,514.09x = 884,526,526.19
  5. Step 5: Solve for x
    x = 884,526,526.19/28,514.09
  6. Step 6: Final answer
    x = 31,020.69

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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.