Home / 20,303.37-28,018.76-11,810.52

Finding the Fourth Proportional to 20,303.37, 28,018.76 and 11,810.52

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Solution

The fourth proportional to 20,303.37, 28,018.76 and 11,810.52 is: 16,298.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.37 : 28,018.76 = 11,810.52 : x
  2. Step 2: Convert to fraction form
    20,303.37/28,018.76 = 11,810.52/x
  3. Step 3: Cross multiply
    20,303.37x = 28,018.76 × 11,810.52
  4. Step 4: Simplify right side
    20,303.37x = 330,916,066.30
  5. Step 5: Solve for x
    x = 330,916,066.30/20,303.37
  6. Step 6: Final answer
    x = 16,298.58

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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.