Home / 15,035.12-20,754.28-13,460.48

Finding the Fourth Proportional to 15,035.12, 20,754.28 and 13,460.48

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Solution

The fourth proportional to 15,035.12, 20,754.28 and 13,460.48 is: 18,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.12 : 20,754.28 = 13,460.48 : x
  2. Step 2: Convert to fraction form
    15,035.12/20,754.28 = 13,460.48/x
  3. Step 3: Cross multiply
    15,035.12x = 20,754.28 × 13,460.48
  4. Step 4: Simplify right side
    15,035.12x = 279,362,570.85
  5. Step 5: Solve for x
    x = 279,362,570.85/15,035.12
  6. Step 6: Final answer
    x = 18,580.67

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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.