Home / 25,314.90-37,972.36-9,721.60

Finding the Fourth Proportional to 25,314.90, 37,972.36 and 9,721.60

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Solution

The fourth proportional to 25,314.90, 37,972.36 and 9,721.60 is: 14,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,314.90 : 37,972.36 = 9,721.60 : x
  2. Step 2: Convert to fraction form
    25,314.90/37,972.36 = 9,721.60/x
  3. Step 3: Cross multiply
    25,314.90x = 37,972.36 × 9,721.60
  4. Step 4: Simplify right side
    25,314.90x = 369,152,094.98
  5. Step 5: Solve for x
    x = 369,152,094.98/25,314.90
  6. Step 6: Final answer
    x = 14,582.40

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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.