Home / 28,622.87-39,508.85-18,533.51

Finding the Fourth Proportional to 28,622.87, 39,508.85 and 18,533.51

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Solution

The fourth proportional to 28,622.87, 39,508.85 and 18,533.51 is: 25,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.87 : 39,508.85 = 18,533.51 : x
  2. Step 2: Convert to fraction form
    28,622.87/39,508.85 = 18,533.51/x
  3. Step 3: Cross multiply
    28,622.87x = 39,508.85 × 18,533.51
  4. Step 4: Simplify right side
    28,622.87x = 732,237,376.35
  5. Step 5: Solve for x
    x = 732,237,376.35/28,622.87
  6. Step 6: Final answer
    x = 25,582.25

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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.