Home / 20,296.85-28,018.29-12,341.63

Finding the Fourth Proportional to 20,296.85, 28,018.29 and 12,341.63

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Solution

The fourth proportional to 20,296.85, 28,018.29 and 12,341.63 is: 17,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.85 : 28,018.29 = 12,341.63 : x
  2. Step 2: Convert to fraction form
    20,296.85/28,018.29 = 12,341.63/x
  3. Step 3: Cross multiply
    20,296.85x = 28,018.29 × 12,341.63
  4. Step 4: Simplify right side
    20,296.85x = 345,791,368.41
  5. Step 5: Solve for x
    x = 345,791,368.41/20,296.85
  6. Step 6: Final answer
    x = 17,036.70

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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.