Home / 30,117.56-41,549.08-21,170.84

Finding the Fourth Proportional to 30,117.56, 41,549.08 and 21,170.84

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Solution

The fourth proportional to 30,117.56, 41,549.08 and 21,170.84 is: 29,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.56 : 41,549.08 = 21,170.84 : x
  2. Step 2: Convert to fraction form
    30,117.56/41,549.08 = 21,170.84/x
  3. Step 3: Cross multiply
    30,117.56x = 41,549.08 × 21,170.84
  4. Step 4: Simplify right side
    30,117.56x = 879,628,924.83
  5. Step 5: Solve for x
    x = 879,628,924.83/30,117.56
  6. Step 6: Final answer
    x = 29,206.51

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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.