Home / 20,849.19-28,767.27-12,347.07

Finding the Fourth Proportional to 20,849.19, 28,767.27 and 12,347.07

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Solution

The fourth proportional to 20,849.19, 28,767.27 and 12,347.07 is: 17,036.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.19 : 28,767.27 = 12,347.07 : x
  2. Step 2: Convert to fraction form
    20,849.19/28,767.27 = 12,347.07/x
  3. Step 3: Cross multiply
    20,849.19x = 28,767.27 × 12,347.07
  4. Step 4: Simplify right side
    20,849.19x = 355,191,496.40
  5. Step 5: Solve for x
    x = 355,191,496.40/20,849.19
  6. Step 6: Final answer
    x = 17,036.23

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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.