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Finding the Fourth Proportional to 25,140.05, 37,710.03 and 6,420.07

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Solution

The fourth proportional to 25,140.05, 37,710.03 and 6,420.07 is: 9,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.05 : 37,710.03 = 6,420.07 : x
  2. Step 2: Convert to fraction form
    25,140.05/37,710.03 = 6,420.07/x
  3. Step 3: Cross multiply
    25,140.05x = 37,710.03 × 6,420.07
  4. Step 4: Simplify right side
    25,140.05x = 242,101,138.49
  5. Step 5: Solve for x
    x = 242,101,138.49/25,140.05
  6. Step 6: Final answer
    x = 9,630.10

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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.