Home / 30,389.12-41,939.08-16,962.99

Finding the Fourth Proportional to 30,389.12, 41,939.08 and 16,962.99

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Solution

The fourth proportional to 30,389.12, 41,939.08 and 16,962.99 is: 23,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.12 : 41,939.08 = 16,962.99 : x
  2. Step 2: Convert to fraction form
    30,389.12/41,939.08 = 16,962.99/x
  3. Step 3: Cross multiply
    30,389.12x = 41,939.08 × 16,962.99
  4. Step 4: Simplify right side
    30,389.12x = 711,411,984.95
  5. Step 5: Solve for x
    x = 711,411,984.95/30,389.12
  6. Step 6: Final answer
    x = 23,410.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.