Home / 34,639.92-47,784.06-20,490.03

Finding the Fourth Proportional to 34,639.92, 47,784.06 and 20,490.03

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Solution

The fourth proportional to 34,639.92, 47,784.06 and 20,490.03 is: 28,264.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,639.92 : 47,784.06 = 20,490.03 : x
  2. Step 2: Convert to fraction form
    34,639.92/47,784.06 = 20,490.03/x
  3. Step 3: Cross multiply
    34,639.92x = 47,784.06 × 20,490.03
  4. Step 4: Simplify right side
    34,639.92x = 979,096,822.92
  5. Step 5: Solve for x
    x = 979,096,822.92/34,639.92
  6. Step 6: Final answer
    x = 28,264.99

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1.5x scale

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.