Home / 19,260.64-28,890.95-5,220.67

Finding the Fourth Proportional to 19,260.64, 28,890.95 and 5,220.67

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Solution

The fourth proportional to 19,260.64, 28,890.95 and 5,220.67 is: 7,831.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,260.64 : 28,890.95 = 5,220.67 : x
  2. Step 2: Convert to fraction form
    19,260.64/28,890.95 = 5,220.67/x
  3. Step 3: Cross multiply
    19,260.64x = 28,890.95 × 5,220.67
  4. Step 4: Simplify right side
    19,260.64x = 150,829,993.94
  5. Step 5: Solve for x
    x = 150,829,993.94/19,260.64
  6. Step 6: Final answer
    x = 7,831.00

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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.