Home / 25,688.48-38,532.54-13,211.98

Finding the Fourth Proportional to 25,688.48, 38,532.54 and 13,211.98

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Solution

The fourth proportional to 25,688.48, 38,532.54 and 13,211.98 is: 19,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688.48 : 38,532.54 = 13,211.98 : x
  2. Step 2: Convert to fraction form
    25,688.48/38,532.54 = 13,211.98/x
  3. Step 3: Cross multiply
    25,688.48x = 38,532.54 × 13,211.98
  4. Step 4: Simplify right side
    25,688.48x = 509,091,081.77
  5. Step 5: Solve for x
    x = 509,091,081.77/25,688.48
  6. Step 6: Final answer
    x = 19,817.88

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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.