Home / 28,263.68-39,004.37-15,518.05

Finding the Fourth Proportional to 28,263.68, 39,004.37 and 15,518.05

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Solution

The fourth proportional to 28,263.68, 39,004.37 and 15,518.05 is: 21,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.68 : 39,004.37 = 15,518.05 : x
  2. Step 2: Convert to fraction form
    28,263.68/39,004.37 = 15,518.05/x
  3. Step 3: Cross multiply
    28,263.68x = 39,004.37 × 15,518.05
  4. Step 4: Simplify right side
    28,263.68x = 605,271,763.88
  5. Step 5: Solve for x
    x = 605,271,763.88/28,263.68
  6. Step 6: Final answer
    x = 21,415.18

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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.