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Finding the Fourth Proportional to 19,093.40, 28,640.10 and 5,053.40

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Solution

The fourth proportional to 19,093.40, 28,640.10 and 5,053.40 is: 7,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.40 : 28,640.10 = 5,053.40 : x
  2. Step 2: Convert to fraction form
    19,093.40/28,640.10 = 5,053.40/x
  3. Step 3: Cross multiply
    19,093.40x = 28,640.10 × 5,053.40
  4. Step 4: Simplify right side
    19,093.40x = 144,729,881.34
  5. Step 5: Solve for x
    x = 144,729,881.34/19,093.40
  6. Step 6: Final answer
    x = 7,580.10

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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.