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Finding the Fourth Proportional to 25,374.16, 38,051.32 and 12,888.72

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Solution

The fourth proportional to 25,374.16, 38,051.32 and 12,888.72 is: 19,328.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,374.16 : 38,051.32 = 12,888.72 : x
  2. Step 2: Convert to fraction form
    25,374.16/38,051.32 = 12,888.72/x
  3. Step 3: Cross multiply
    25,374.16x = 38,051.32 × 12,888.72
  4. Step 4: Simplify right side
    25,374.16x = 490,432,809.11
  5. Step 5: Solve for x
    x = 490,432,809.11/25,374.16
  6. Step 6: Final answer
    x = 19,328.04

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