Home / 28,543.64-39,363.91-19,575.32

Finding the Fourth Proportional to 28,543.64, 39,363.91 and 19,575.32

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Solution

The fourth proportional to 28,543.64, 39,363.91 and 19,575.32 is: 26,995.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.64 : 39,363.91 = 19,575.32 : x
  2. Step 2: Convert to fraction form
    28,543.64/39,363.91 = 19,575.32/x
  3. Step 3: Cross multiply
    28,543.64x = 39,363.91 × 19,575.32
  4. Step 4: Simplify right side
    28,543.64x = 770,560,888.94
  5. Step 5: Solve for x
    x = 770,560,888.94/28,543.64
  6. Step 6: Final answer
    x = 26,995.89

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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.