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Finding the Fourth Proportional to 30,453.54, 45,746.28 and 25,783.08

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Solution

The fourth proportional to 30,453.54, 45,746.28 and 25,783.08 is: 38,730.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.54 : 45,746.28 = 25,783.08 : x
  2. Step 2: Convert to fraction form
    30,453.54/45,746.28 = 25,783.08/x
  3. Step 3: Cross multiply
    30,453.54x = 45,746.28 × 25,783.08
  4. Step 4: Simplify right side
    30,453.54x = 1,179,479,996.94
  5. Step 5: Solve for x
    x = 1,179,479,996.94/30,453.54
  6. Step 6: Final answer
    x = 38,730.47

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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.