Home / 21,430.36-32,145.18-5,847.99

Finding the Fourth Proportional to 21,430.36, 32,145.18 and 5,847.99

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Solution

The fourth proportional to 21,430.36, 32,145.18 and 5,847.99 is: 8,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430.36 : 32,145.18 = 5,847.99 : x
  2. Step 2: Convert to fraction form
    21,430.36/32,145.18 = 5,847.99/x
  3. Step 3: Cross multiply
    21,430.36x = 32,145.18 × 5,847.99
  4. Step 4: Simplify right side
    21,430.36x = 187,984,691.19
  5. Step 5: Solve for x
    x = 187,984,691.19/21,430.36
  6. Step 6: Final answer
    x = 8,771.89

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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.