Home / 30,425.02-45,637.80-8,238.60

Finding the Fourth Proportional to 30,425.02, 45,637.80 and 8,238.60

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Solution

The fourth proportional to 30,425.02, 45,637.80 and 8,238.60 is: 12,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,425.02 : 45,637.80 = 8,238.60 : x
  2. Step 2: Convert to fraction form
    30,425.02/45,637.80 = 8,238.60/x
  3. Step 3: Cross multiply
    30,425.02x = 45,637.80 × 8,238.60
  4. Step 4: Simplify right side
    30,425.02x = 375,991,579.08
  5. Step 5: Solve for x
    x = 375,991,579.08/30,425.02
  6. Step 6: Final answer
    x = 12,357.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.