Home / 21,497.81-29,676.98-14,339.63

Finding the Fourth Proportional to 21,497.81, 29,676.98 and 14,339.63

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Solution

The fourth proportional to 21,497.81, 29,676.98 and 14,339.63 is: 19,795.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.81 : 29,676.98 = 14,339.63 : x
  2. Step 2: Convert to fraction form
    21,497.81/29,676.98 = 14,339.63/x
  3. Step 3: Cross multiply
    21,497.81x = 29,676.98 × 14,339.63
  4. Step 4: Simplify right side
    21,497.81x = 425,557,022.76
  5. Step 5: Solve for x
    x = 425,557,022.76/21,497.81
  6. Step 6: Final answer
    x = 19,795.37

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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.