Home / 20,547.90-30,825.38-6,507.70

Finding the Fourth Proportional to 20,547.90, 30,825.38 and 6,507.70

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Solution

The fourth proportional to 20,547.90, 30,825.38 and 6,507.70 is: 9,762.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.90 : 30,825.38 = 6,507.70 : x
  2. Step 2: Convert to fraction form
    20,547.90/30,825.38 = 6,507.70/x
  3. Step 3: Cross multiply
    20,547.90x = 30,825.38 × 6,507.70
  4. Step 4: Simplify right side
    20,547.90x = 200,602,325.43
  5. Step 5: Solve for x
    x = 200,602,325.43/20,547.90
  6. Step 6: Final answer
    x = 9,762.67

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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.