Home / 20,210.90-30,297.56-10,328.36

Finding the Fourth Proportional to 20,210.90, 30,297.56 and 10,328.36

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Solution

The fourth proportional to 20,210.90, 30,297.56 and 10,328.36 is: 15,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.90 : 30,297.56 = 10,328.36 : x
  2. Step 2: Convert to fraction form
    20,210.90/30,297.56 = 10,328.36/x
  3. Step 3: Cross multiply
    20,210.90x = 30,297.56 × 10,328.36
  4. Step 4: Simplify right side
    20,210.90x = 312,924,106.80
  5. Step 5: Solve for x
    x = 312,924,106.80/20,210.90
  6. Step 6: Final answer
    x = 15,482.94

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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.