Home / 20,458.32-28,210.32-17,782.08

Finding the Fourth Proportional to 20,458.32, 28,210.32 and 17,782.08

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Solution

The fourth proportional to 20,458.32, 28,210.32 and 17,782.08 is: 24,520.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458.32 : 28,210.32 = 17,782.08 : x
  2. Step 2: Convert to fraction form
    20,458.32/28,210.32 = 17,782.08/x
  3. Step 3: Cross multiply
    20,458.32x = 28,210.32 × 17,782.08
  4. Step 4: Simplify right side
    20,458.32x = 501,638,167.07
  5. Step 5: Solve for x
    x = 501,638,167.07/20,458.32
  6. Step 6: Final answer
    x = 24,520.01

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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.