Home / 20,054.37-27,681.99-12,403.50

Finding the Fourth Proportional to 20,054.37, 27,681.99 and 12,403.50

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Solution

The fourth proportional to 20,054.37, 27,681.99 and 12,403.50 is: 17,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.37 : 27,681.99 = 12,403.50 : x
  2. Step 2: Convert to fraction form
    20,054.37/27,681.99 = 12,403.50/x
  3. Step 3: Cross multiply
    20,054.37x = 27,681.99 × 12,403.50
  4. Step 4: Simplify right side
    20,054.37x = 343,353,412.64
  5. Step 5: Solve for x
    x = 343,353,412.64/20,054.37
  6. Step 6: Final answer
    x = 17,121.13

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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.