Home / 20,264.42-27,977.74-13,901.68

Finding the Fourth Proportional to 20,264.42, 27,977.74 and 13,901.68

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Solution

The fourth proportional to 20,264.42, 27,977.74 and 13,901.68 is: 19,193.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.42 : 27,977.74 = 13,901.68 : x
  2. Step 2: Convert to fraction form
    20,264.42/27,977.74 = 13,901.68/x
  3. Step 3: Cross multiply
    20,264.42x = 27,977.74 × 13,901.68
  4. Step 4: Simplify right side
    20,264.42x = 388,937,588.60
  5. Step 5: Solve for x
    x = 388,937,588.60/20,264.42
  6. Step 6: Final answer
    x = 19,193.13

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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.