Home / 30,405.09-41,947.08-17,656.10

Finding the Fourth Proportional to 30,405.09, 41,947.08 and 17,656.10

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Solution

The fourth proportional to 30,405.09, 41,947.08 and 17,656.10 is: 24,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.09 : 41,947.08 = 17,656.10 : x
  2. Step 2: Convert to fraction form
    30,405.09/41,947.08 = 17,656.10/x
  3. Step 3: Cross multiply
    30,405.09x = 41,947.08 × 17,656.10
  4. Step 4: Simplify right side
    30,405.09x = 740,621,629.45
  5. Step 5: Solve for x
    x = 740,621,629.45/30,405.09
  6. Step 6: Final answer
    x = 24,358.48

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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.