Home / 28,657.30-39,636.93-25,345.30

Finding the Fourth Proportional to 28,657.30, 39,636.93 and 25,345.30

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Solution

The fourth proportional to 28,657.30, 39,636.93 and 25,345.30 is: 35,055.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,657.30 : 39,636.93 = 25,345.30 : x
  2. Step 2: Convert to fraction form
    28,657.30/39,636.93 = 25,345.30/x
  3. Step 3: Cross multiply
    28,657.30x = 39,636.93 × 25,345.30
  4. Step 4: Simplify right side
    28,657.30x = 1,004,609,881.93
  5. Step 5: Solve for x
    x = 1,004,609,881.93/28,657.30
  6. Step 6: Final answer
    x = 35,055.99

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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.