Home / 20,263.08-30,401.64-7,117.32

Finding the Fourth Proportional to 20,263.08, 30,401.64 and 7,117.32

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Solution

The fourth proportional to 20,263.08, 30,401.64 and 7,117.32 is: 10,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.08 : 30,401.64 = 7,117.32 : x
  2. Step 2: Convert to fraction form
    20,263.08/30,401.64 = 7,117.32/x
  3. Step 3: Cross multiply
    20,263.08x = 30,401.64 × 7,117.32
  4. Step 4: Simplify right side
    20,263.08x = 216,378,200.40
  5. Step 5: Solve for x
    x = 216,378,200.40/20,263.08
  6. Step 6: Final answer
    x = 10,678.45

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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.