Home / 20,984.24-28,961.02-12,030.01

Finding the Fourth Proportional to 20,984.24, 28,961.02 and 12,030.01

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Solution

The fourth proportional to 20,984.24, 28,961.02 and 12,030.01 is: 16,603.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.24 : 28,961.02 = 12,030.01 : x
  2. Step 2: Convert to fraction form
    20,984.24/28,961.02 = 12,030.01/x
  3. Step 3: Cross multiply
    20,984.24x = 28,961.02 × 12,030.01
  4. Step 4: Simplify right side
    20,984.24x = 348,401,360.21
  5. Step 5: Solve for x
    x = 348,401,360.21/20,984.24
  6. Step 6: Final answer
    x = 16,603.00

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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.