Home / 20,303.52-28,017.06-11,349.84

Finding the Fourth Proportional to 20,303.52, 28,017.06 and 11,349.84

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Solution

The fourth proportional to 20,303.52, 28,017.06 and 11,349.84 is: 15,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.52 : 28,017.06 = 11,349.84 : x
  2. Step 2: Convert to fraction form
    20,303.52/28,017.06 = 11,349.84/x
  3. Step 3: Cross multiply
    20,303.52x = 28,017.06 × 11,349.84
  4. Step 4: Simplify right side
    20,303.52x = 317,989,148.27
  5. Step 5: Solve for x
    x = 317,989,148.27/20,303.52
  6. Step 6: Final answer
    x = 15,661.77

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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.