Home / 47,384.10-65,387.43-29,478.54

Finding the Fourth Proportional to 47,384.10, 65,387.43 and 29,478.54

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Solution

The fourth proportional to 47,384.10, 65,387.43 and 29,478.54 is: 40,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,384.10 : 65,387.43 = 29,478.54 : x
  2. Step 2: Convert to fraction form
    47,384.10/65,387.43 = 29,478.54/x
  3. Step 3: Cross multiply
    47,384.10x = 65,387.43 × 29,478.54
  4. Step 4: Simplify right side
    47,384.10x = 1,927,525,970.75
  5. Step 5: Solve for x
    x = 1,927,525,970.75/47,384.10
  6. Step 6: Final answer
    x = 40,678.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.