Home / 31,292.64-46,938.96-18,977.76

Finding the Fourth Proportional to 31,292.64, 46,938.96 and 18,977.76

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Solution

The fourth proportional to 31,292.64, 46,938.96 and 18,977.76 is: 28,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,292.64 : 46,938.96 = 18,977.76 : x
  2. Step 2: Convert to fraction form
    31,292.64/46,938.96 = 18,977.76/x
  3. Step 3: Cross multiply
    31,292.64x = 46,938.96 × 18,977.76
  4. Step 4: Simplify right side
    31,292.64x = 890,796,317.53
  5. Step 5: Solve for x
    x = 890,796,317.53/31,292.64
  6. Step 6: Final answer
    x = 28,466.64

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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.