Home / 20,384.40-30,567.96-6,530.16

Finding the Fourth Proportional to 20,384.40, 30,567.96 and 6,530.16

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Solution

The fourth proportional to 20,384.40, 30,567.96 and 6,530.16 is: 9,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.40 : 30,567.96 = 6,530.16 : x
  2. Step 2: Convert to fraction form
    20,384.40/30,567.96 = 6,530.16/x
  3. Step 3: Cross multiply
    20,384.40x = 30,567.96 × 6,530.16
  4. Step 4: Simplify right side
    20,384.40x = 199,613,669.67
  5. Step 5: Solve for x
    x = 199,613,669.67/20,384.40
  6. Step 6: Final answer
    x = 9,792.47

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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.