Home / 28,336.09-39,104.65-15,590.59

Finding the Fourth Proportional to 28,336.09, 39,104.65 and 15,590.59

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Solution

The fourth proportional to 28,336.09, 39,104.65 and 15,590.59 is: 21,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.09 : 39,104.65 = 15,590.59 : x
  2. Step 2: Convert to fraction form
    28,336.09/39,104.65 = 15,590.59/x
  3. Step 3: Cross multiply
    28,336.09x = 39,104.65 × 15,590.59
  4. Step 4: Simplify right side
    28,336.09x = 609,664,428.51
  5. Step 5: Solve for x
    x = 609,664,428.51/28,336.09
  6. Step 6: Final answer
    x = 21,515.48

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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.