Home / 21,462.76-29,619.84-12,030.58

Finding the Fourth Proportional to 21,462.76, 29,619.84 and 12,030.58

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Solution

The fourth proportional to 21,462.76, 29,619.84 and 12,030.58 is: 16,602.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.76 : 29,619.84 = 12,030.58 : x
  2. Step 2: Convert to fraction form
    21,462.76/29,619.84 = 12,030.58/x
  3. Step 3: Cross multiply
    21,462.76x = 29,619.84 × 12,030.58
  4. Step 4: Simplify right side
    21,462.76x = 356,343,854.71
  5. Step 5: Solve for x
    x = 356,343,854.71/21,462.76
  6. Step 6: Final answer
    x = 16,602.89

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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.