Home / 31,159.45-46,739.24-13,630.64

Finding the Fourth Proportional to 31,159.45, 46,739.24 and 13,630.64

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Solution

The fourth proportional to 31,159.45, 46,739.24 and 13,630.64 is: 20,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.45 : 46,739.24 = 13,630.64 : x
  2. Step 2: Convert to fraction form
    31,159.45/46,739.24 = 13,630.64/x
  3. Step 3: Cross multiply
    31,159.45x = 46,739.24 × 13,630.64
  4. Step 4: Simplify right side
    31,159.45x = 637,085,686.16
  5. Step 5: Solve for x
    x = 637,085,686.16/31,159.45
  6. Step 6: Final answer
    x = 20,445.99

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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.