Home / 20,303.85-28,027.95-12,348.63

Finding the Fourth Proportional to 20,303.85, 28,027.95 and 12,348.63

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Solution

The fourth proportional to 20,303.85, 28,027.95 and 12,348.63 is: 17,046.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.85 : 28,027.95 = 12,348.63 : x
  2. Step 2: Convert to fraction form
    20,303.85/28,027.95 = 12,348.63/x
  3. Step 3: Cross multiply
    20,303.85x = 28,027.95 × 12,348.63
  4. Step 4: Simplify right side
    20,303.85x = 346,106,784.21
  5. Step 5: Solve for x
    x = 346,106,784.21/20,303.85
  6. Step 6: Final answer
    x = 17,046.36

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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.