Home / 30,294.09-41,807.87-18,358.60

Finding the Fourth Proportional to 30,294.09, 41,807.87 and 18,358.60

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Solution

The fourth proportional to 30,294.09, 41,807.87 and 18,358.60 is: 25,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,294.09 : 41,807.87 = 18,358.60 : x
  2. Step 2: Convert to fraction form
    30,294.09/41,807.87 = 18,358.60/x
  3. Step 3: Cross multiply
    30,294.09x = 41,807.87 × 18,358.60
  4. Step 4: Simplify right side
    30,294.09x = 767,533,962.18
  5. Step 5: Solve for x
    x = 767,533,962.18/30,294.09
  6. Step 6: Final answer
    x = 25,336.10

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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.