Home / 26,205.12-39,307.68-21,578.40

Finding the Fourth Proportional to 26,205.12, 39,307.68 and 21,578.40

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Solution

The fourth proportional to 26,205.12, 39,307.68 and 21,578.40 is: 32,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,205.12 : 39,307.68 = 21,578.40 : x
  2. Step 2: Convert to fraction form
    26,205.12/39,307.68 = 21,578.40/x
  3. Step 3: Cross multiply
    26,205.12x = 39,307.68 × 21,578.40
  4. Step 4: Simplify right side
    26,205.12x = 848,196,842.11
  5. Step 5: Solve for x
    x = 848,196,842.11/26,205.12
  6. Step 6: Final answer
    x = 32,367.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.