Home / 31,263.28-46,890.60-7,888.30

Finding the Fourth Proportional to 31,263.28, 46,890.60 and 7,888.30

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Solution

The fourth proportional to 31,263.28, 46,890.60 and 7,888.30 is: 11,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,263.28 : 46,890.60 = 7,888.30 : x
  2. Step 2: Convert to fraction form
    31,263.28/46,890.60 = 7,888.30/x
  3. Step 3: Cross multiply
    31,263.28x = 46,890.60 × 7,888.30
  4. Step 4: Simplify right side
    31,263.28x = 369,887,119.98
  5. Step 5: Solve for x
    x = 369,887,119.98/31,263.28
  6. Step 6: Final answer
    x = 11,831.36

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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.