Home / 20,235.61-27,938.14-13,068.74

Finding the Fourth Proportional to 20,235.61, 27,938.14 and 13,068.74

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Solution

The fourth proportional to 20,235.61, 27,938.14 and 13,068.74 is: 18,043.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.61 : 27,938.14 = 13,068.74 : x
  2. Step 2: Convert to fraction form
    20,235.61/27,938.14 = 13,068.74/x
  3. Step 3: Cross multiply
    20,235.61x = 27,938.14 × 13,068.74
  4. Step 4: Simplify right side
    20,235.61x = 365,116,287.74
  5. Step 5: Solve for x
    x = 365,116,287.74/20,235.61
  6. Step 6: Final answer
    x = 18,043.26

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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.