Home / 30,189.21-41,652.59-18,870.18

Finding the Fourth Proportional to 30,189.21, 41,652.59 and 18,870.18

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Solution

The fourth proportional to 30,189.21, 41,652.59 and 18,870.18 is: 26,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.21 : 41,652.59 = 18,870.18 : x
  2. Step 2: Convert to fraction form
    30,189.21/41,652.59 = 18,870.18/x
  3. Step 3: Cross multiply
    30,189.21x = 41,652.59 × 18,870.18
  4. Step 4: Simplify right side
    30,189.21x = 785,991,776.42
  5. Step 5: Solve for x
    x = 785,991,776.42/30,189.21
  6. Step 6: Final answer
    x = 26,035.52

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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.