Home / 13,705.08-20,437.26-13,580.34

Finding the Fourth Proportional to 13,705.08, 20,437.26 and 13,580.34

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Solution

The fourth proportional to 13,705.08, 20,437.26 and 13,580.34 is: 20,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.08 : 20,437.26 = 13,580.34 : x
  2. Step 2: Convert to fraction form
    13,705.08/20,437.26 = 13,580.34/x
  3. Step 3: Cross multiply
    13,705.08x = 20,437.26 × 13,580.34
  4. Step 4: Simplify right side
    13,705.08x = 277,544,939.47
  5. Step 5: Solve for x
    x = 277,544,939.47/13,705.08
  6. Step 6: Final answer
    x = 20,251.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.