Home / 31,178.34-46,783.15-14,539.68

Finding the Fourth Proportional to 31,178.34, 46,783.15 and 14,539.68

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Solution

The fourth proportional to 31,178.34, 46,783.15 and 14,539.68 is: 21,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.34 : 46,783.15 = 14,539.68 : x
  2. Step 2: Convert to fraction form
    31,178.34/46,783.15 = 14,539.68/x
  3. Step 3: Cross multiply
    31,178.34x = 46,783.15 × 14,539.68
  4. Step 4: Simplify right side
    31,178.34x = 680,211,994.04
  5. Step 5: Solve for x
    x = 680,211,994.04/31,178.34
  6. Step 6: Final answer
    x = 21,816.81

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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.