Home / 20,589.98-28,417.23-13,037.02

Finding the Fourth Proportional to 20,589.98, 28,417.23 and 13,037.02

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Solution

The fourth proportional to 20,589.98, 28,417.23 and 13,037.02 is: 17,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.98 : 28,417.23 = 13,037.02 : x
  2. Step 2: Convert to fraction form
    20,589.98/28,417.23 = 13,037.02/x
  3. Step 3: Cross multiply
    20,589.98x = 28,417.23 × 13,037.02
  4. Step 4: Simplify right side
    20,589.98x = 370,475,924.81
  5. Step 5: Solve for x
    x = 370,475,924.81/20,589.98
  6. Step 6: Final answer
    x = 17,993.02

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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.