Home / 20,055.63-30,113-11,188.27

Finding the Fourth Proportional to 20,055.63, 30,113 and 11,188.27

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Solution

The fourth proportional to 20,055.63, 30,113 and 11,188.27 is: 16,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.63 : 30,113 = 11,188.27 : x
  2. Step 2: Convert to fraction form
    20,055.63/30,113 = 11,188.27/x
  3. Step 3: Cross multiply
    20,055.63x = 30,113 × 11,188.27
  4. Step 4: Simplify right side
    20,055.63x = 336,912,374.51
  5. Step 5: Solve for x
    x = 336,912,374.51/20,055.63
  6. Step 6: Final answer
    x = 16,798.89

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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.