Home / 30,247.40-45,331.67-15,443.84

Finding the Fourth Proportional to 30,247.40, 45,331.67 and 15,443.84

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Solution

The fourth proportional to 30,247.40, 45,331.67 and 15,443.84 is: 23,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.40 : 45,331.67 = 15,443.84 : x
  2. Step 2: Convert to fraction form
    30,247.40/45,331.67 = 15,443.84/x
  3. Step 3: Cross multiply
    30,247.40x = 45,331.67 × 15,443.84
  4. Step 4: Simplify right side
    30,247.40x = 700,094,870.36
  5. Step 5: Solve for x
    x = 700,094,870.36/30,247.40
  6. Step 6: Final answer
    x = 23,145.63

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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.