Home / 21,624.72-29,852.16-12,670.98

Finding the Fourth Proportional to 21,624.72, 29,852.16 and 12,670.98

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Solution

The fourth proportional to 21,624.72, 29,852.16 and 12,670.98 is: 17,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.72 : 29,852.16 = 12,670.98 : x
  2. Step 2: Convert to fraction form
    21,624.72/29,852.16 = 12,670.98/x
  3. Step 3: Cross multiply
    21,624.72x = 29,852.16 × 12,670.98
  4. Step 4: Simplify right side
    21,624.72x = 378,256,122.32
  5. Step 5: Solve for x
    x = 378,256,122.32/21,624.72
  6. Step 6: Final answer
    x = 17,491.84

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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.