Home / 21,051.39-29,050.50-12,098.67

Finding the Fourth Proportional to 21,051.39, 29,050.50 and 12,098.67

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Solution

The fourth proportional to 21,051.39, 29,050.50 and 12,098.67 is: 16,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.39 : 29,050.50 = 12,098.67 : x
  2. Step 2: Convert to fraction form
    21,051.39/29,050.50 = 12,098.67/x
  3. Step 3: Cross multiply
    21,051.39x = 29,050.50 × 12,098.67
  4. Step 4: Simplify right side
    21,051.39x = 351,472,281.21
  5. Step 5: Solve for x
    x = 351,472,281.21/21,051.39
  6. Step 6: Final answer
    x = 16,695.92

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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.