Home / 21,678.49-32,498.01-8,342.98

Finding the Fourth Proportional to 21,678.49, 32,498.01 and 8,342.98

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Solution

The fourth proportional to 21,678.49, 32,498.01 and 8,342.98 is: 12,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.49 : 32,498.01 = 8,342.98 : x
  2. Step 2: Convert to fraction form
    21,678.49/32,498.01 = 8,342.98/x
  3. Step 3: Cross multiply
    21,678.49x = 32,498.01 × 8,342.98
  4. Step 4: Simplify right side
    21,678.49x = 271,130,166.22
  5. Step 5: Solve for x
    x = 271,130,166.22/21,678.49
  6. Step 6: Final answer
    x = 12,506.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.