Home / 30,579.62-42,182.78-19,244.90

Finding the Fourth Proportional to 30,579.62, 42,182.78 and 19,244.90

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Solution

The fourth proportional to 30,579.62, 42,182.78 and 19,244.90 is: 26,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.62 : 42,182.78 = 19,244.90 : x
  2. Step 2: Convert to fraction form
    30,579.62/42,182.78 = 19,244.90/x
  3. Step 3: Cross multiply
    30,579.62x = 42,182.78 × 19,244.90
  4. Step 4: Simplify right side
    30,579.62x = 811,803,286.60
  5. Step 5: Solve for x
    x = 811,803,286.60/30,579.62
  6. Step 6: Final answer
    x = 26,547.20

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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.