Home / 30,833.28-42,547.56-17,405.88

Finding the Fourth Proportional to 30,833.28, 42,547.56 and 17,405.88

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Solution

The fourth proportional to 30,833.28, 42,547.56 and 17,405.88 is: 24,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,833.28 : 42,547.56 = 17,405.88 : x
  2. Step 2: Convert to fraction form
    30,833.28/42,547.56 = 17,405.88/x
  3. Step 3: Cross multiply
    30,833.28x = 42,547.56 × 17,405.88
  4. Step 4: Simplify right side
    30,833.28x = 740,577,723.65
  5. Step 5: Solve for x
    x = 740,577,723.65/30,833.28
  6. Step 6: Final answer
    x = 24,018.78

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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.