Home / 28,335.93-39,104.53-15,590.58

Finding the Fourth Proportional to 28,335.93, 39,104.53 and 15,590.58

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Solution

The fourth proportional to 28,335.93, 39,104.53 and 15,590.58 is: 21,515.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.93 : 39,104.53 = 15,590.58 : x
  2. Step 2: Convert to fraction form
    28,335.93/39,104.53 = 15,590.58/x
  3. Step 3: Cross multiply
    28,335.93x = 39,104.53 × 15,590.58
  4. Step 4: Simplify right side
    28,335.93x = 609,662,303.33
  5. Step 5: Solve for x
    x = 609,662,303.33/28,335.93
  6. Step 6: Final answer
    x = 21,515.52

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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.