Home / 28,259.77-38,999.18-15,514.22

Finding the Fourth Proportional to 28,259.77, 38,999.18 and 15,514.22

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Solution

The fourth proportional to 28,259.77, 38,999.18 and 15,514.22 is: 21,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.77 : 38,999.18 = 15,514.22 : x
  2. Step 2: Convert to fraction form
    28,259.77/38,999.18 = 15,514.22/x
  3. Step 3: Cross multiply
    28,259.77x = 38,999.18 × 15,514.22
  4. Step 4: Simplify right side
    28,259.77x = 605,041,858.34
  5. Step 5: Solve for x
    x = 605,041,858.34/28,259.77
  6. Step 6: Final answer
    x = 21,410.01

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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.