Home / 30,108.58-41,547.40-16,680.40

Finding the Fourth Proportional to 30,108.58, 41,547.40 and 16,680.40

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Solution

The fourth proportional to 30,108.58, 41,547.40 and 16,680.40 is: 23,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108.58 : 41,547.40 = 16,680.40 : x
  2. Step 2: Convert to fraction form
    30,108.58/41,547.40 = 16,680.40/x
  3. Step 3: Cross multiply
    30,108.58x = 41,547.40 × 16,680.40
  4. Step 4: Simplify right side
    30,108.58x = 693,027,105.39
  5. Step 5: Solve for x
    x = 693,027,105.39/30,108.58
  6. Step 6: Final answer
    x = 23,017.60

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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.