Home / 17,305.28-23,894.65-13,521.90

Finding the Fourth Proportional to 17,305.28, 23,894.65 and 13,521.90

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Solution

The fourth proportional to 17,305.28, 23,894.65 and 13,521.90 is: 18,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,305.28 : 23,894.65 = 13,521.90 : x
  2. Step 2: Convert to fraction form
    17,305.28/23,894.65 = 13,521.90/x
  3. Step 3: Cross multiply
    17,305.28x = 23,894.65 × 13,521.90
  4. Step 4: Simplify right side
    17,305.28x = 323,101,000.23
  5. Step 5: Solve for x
    x = 323,101,000.23/17,305.28
  6. Step 6: Final answer
    x = 18,670.67

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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.