Home / 31,019.40-46,529.10-18,577.80

Finding the Fourth Proportional to 31,019.40, 46,529.10 and 18,577.80

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Solution

The fourth proportional to 31,019.40, 46,529.10 and 18,577.80 is: 27,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,019.40 : 46,529.10 = 18,577.80 : x
  2. Step 2: Convert to fraction form
    31,019.40/46,529.10 = 18,577.80/x
  3. Step 3: Cross multiply
    31,019.40x = 46,529.10 × 18,577.80
  4. Step 4: Simplify right side
    31,019.40x = 864,408,313.98
  5. Step 5: Solve for x
    x = 864,408,313.98/31,019.40
  6. Step 6: Final answer
    x = 27,866.70

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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.