Home / 20,585.16-30,889.18-10,055.30

Finding the Fourth Proportional to 20,585.16, 30,889.18 and 10,055.30

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Solution

The fourth proportional to 20,585.16, 30,889.18 and 10,055.30 is: 15,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.16 : 30,889.18 = 10,055.30 : x
  2. Step 2: Convert to fraction form
    20,585.16/30,889.18 = 10,055.30/x
  3. Step 3: Cross multiply
    20,585.16x = 30,889.18 × 10,055.30
  4. Step 4: Simplify right side
    20,585.16x = 310,599,971.65
  5. Step 5: Solve for x
    x = 310,599,971.65/20,585.16
  6. Step 6: Final answer
    x = 15,088.54

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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.