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Finding the Fourth Proportional to 30,160.80, 45,284.40 and 17,038.80

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Solution

The fourth proportional to 30,160.80, 45,284.40 and 17,038.80 is: 25,582.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,160.80 : 45,284.40 = 17,038.80 : x
  2. Step 2: Convert to fraction form
    30,160.80/45,284.40 = 17,038.80/x
  3. Step 3: Cross multiply
    30,160.80x = 45,284.40 × 17,038.80
  4. Step 4: Simplify right side
    30,160.80x = 771,591,834.72
  5. Step 5: Solve for x
    x = 771,591,834.72/30,160.80
  6. Step 6: Final answer
    x = 25,582.61

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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.