Home / 30,831.24-46,209.10-13,263.88

Finding the Fourth Proportional to 30,831.24, 46,209.10 and 13,263.88

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Solution

The fourth proportional to 30,831.24, 46,209.10 and 13,263.88 is: 19,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.24 : 46,209.10 = 13,263.88 : x
  2. Step 2: Convert to fraction form
    30,831.24/46,209.10 = 13,263.88/x
  3. Step 3: Cross multiply
    30,831.24x = 46,209.10 × 13,263.88
  4. Step 4: Simplify right side
    30,831.24x = 612,911,957.31
  5. Step 5: Solve for x
    x = 612,911,957.31/30,831.24
  6. Step 6: Final answer
    x = 19,879.58

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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.