Home / 30,490.92-45,551.61-19,308.06

Finding the Fourth Proportional to 30,490.92, 45,551.61 and 19,308.06

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Solution

The fourth proportional to 30,490.92, 45,551.61 and 19,308.06 is: 28,845.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.92 : 45,551.61 = 19,308.06 : x
  2. Step 2: Convert to fraction form
    30,490.92/45,551.61 = 19,308.06/x
  3. Step 3: Cross multiply
    30,490.92x = 45,551.61 × 19,308.06
  4. Step 4: Simplify right side
    30,490.92x = 879,513,218.98
  5. Step 5: Solve for x
    x = 879,513,218.98/30,490.92
  6. Step 6: Final answer
    x = 28,845.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.