Home / 19,980.90-29,968.44-12,562.62

Finding the Fourth Proportional to 19,980.90, 29,968.44 and 12,562.62

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Solution

The fourth proportional to 19,980.90, 29,968.44 and 12,562.62 is: 18,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.90 : 29,968.44 = 12,562.62 : x
  2. Step 2: Convert to fraction form
    19,980.90/29,968.44 = 12,562.62/x
  3. Step 3: Cross multiply
    19,980.90x = 29,968.44 × 12,562.62
  4. Step 4: Simplify right side
    19,980.90x = 376,482,123.71
  5. Step 5: Solve for x
    x = 376,482,123.71/19,980.90
  6. Step 6: Final answer
    x = 18,842.10

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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.