Home / 20,567.99-30,810.72-9,459.20

Finding the Fourth Proportional to 20,567.99, 30,810.72 and 9,459.20

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Solution

The fourth proportional to 20,567.99, 30,810.72 and 9,459.20 is: 14,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.99 : 30,810.72 = 9,459.20 : x
  2. Step 2: Convert to fraction form
    20,567.99/30,810.72 = 9,459.20/x
  3. Step 3: Cross multiply
    20,567.99x = 30,810.72 × 9,459.20
  4. Step 4: Simplify right side
    20,567.99x = 291,444,762.62
  5. Step 5: Solve for x
    x = 291,444,762.62/20,567.99
  6. Step 6: Final answer
    x = 14,169.82

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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.