Home / 19,210.55-26,490.35-15,170.67

Finding the Fourth Proportional to 19,210.55, 26,490.35 and 15,170.67

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Solution

The fourth proportional to 19,210.55, 26,490.35 and 15,170.67 is: 20,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.55 : 26,490.35 = 15,170.67 : x
  2. Step 2: Convert to fraction form
    19,210.55/26,490.35 = 15,170.67/x
  3. Step 3: Cross multiply
    19,210.55x = 26,490.35 × 15,170.67
  4. Step 4: Simplify right side
    19,210.55x = 401,876,395.96
  5. Step 5: Solve for x
    x = 401,876,395.96/19,210.55
  6. Step 6: Final answer
    x = 20,919.57

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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.