Home / 20,746.32-31,109.24-9,054.48

Finding the Fourth Proportional to 20,746.32, 31,109.24 and 9,054.48

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Solution

The fourth proportional to 20,746.32, 31,109.24 and 9,054.48 is: 13,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.32 : 31,109.24 = 9,054.48 : x
  2. Step 2: Convert to fraction form
    20,746.32/31,109.24 = 9,054.48/x
  3. Step 3: Cross multiply
    20,746.32x = 31,109.24 × 9,054.48
  4. Step 4: Simplify right side
    20,746.32x = 281,677,991.40
  5. Step 5: Solve for x
    x = 281,677,991.40/20,746.32
  6. Step 6: Final answer
    x = 13,577.25

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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.