Home / 20,303.03-28,018.80-11,350.91

Finding the Fourth Proportional to 20,303.03, 28,018.80 and 11,350.91

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Solution

The fourth proportional to 20,303.03, 28,018.80 and 11,350.91 is: 15,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.03 : 28,018.80 = 11,350.91 : x
  2. Step 2: Convert to fraction form
    20,303.03/28,018.80 = 11,350.91/x
  3. Step 3: Cross multiply
    20,303.03x = 28,018.80 × 11,350.91
  4. Step 4: Simplify right side
    20,303.03x = 318,038,947.16
  5. Step 5: Solve for x
    x = 318,038,947.16/20,303.03
  6. Step 6: Final answer
    x = 15,664.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.