Home / 21,349.56-29,473.80-14,287.98

Finding the Fourth Proportional to 21,349.56, 29,473.80 and 14,287.98

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Solution

The fourth proportional to 21,349.56, 29,473.80 and 14,287.98 is: 19,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.56 : 29,473.80 = 14,287.98 : x
  2. Step 2: Convert to fraction form
    21,349.56/29,473.80 = 14,287.98/x
  3. Step 3: Cross multiply
    21,349.56x = 29,473.80 × 14,287.98
  4. Step 4: Simplify right side
    21,349.56x = 421,121,064.92
  5. Step 5: Solve for x
    x = 421,121,064.92/21,349.56
  6. Step 6: Final answer
    x = 19,725.05

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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.