Home / 20,522.16-28,339.47-19,417.32

Finding the Fourth Proportional to 20,522.16, 28,339.47 and 19,417.32

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Solution

The fourth proportional to 20,522.16, 28,339.47 and 19,417.32 is: 26,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.16 : 28,339.47 = 19,417.32 : x
  2. Step 2: Convert to fraction form
    20,522.16/28,339.47 = 19,417.32/x
  3. Step 3: Cross multiply
    20,522.16x = 28,339.47 × 19,417.32
  4. Step 4: Simplify right side
    20,522.16x = 550,276,557.62
  5. Step 5: Solve for x
    x = 550,276,557.62/20,522.16
  6. Step 6: Final answer
    x = 26,813.77

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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.