Home / 21,350.76-29,464.28-12,395.00

Finding the Fourth Proportional to 21,350.76, 29,464.28 and 12,395.00

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Solution

The fourth proportional to 21,350.76, 29,464.28 and 12,395.00 is: 17,105.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.76 : 29,464.28 = 12,395.00 : x
  2. Step 2: Convert to fraction form
    21,350.76/29,464.28 = 12,395.00/x
  3. Step 3: Cross multiply
    21,350.76x = 29,464.28 × 12,395.00
  4. Step 4: Simplify right side
    21,350.76x = 365,209,541.30
  5. Step 5: Solve for x
    x = 365,209,541.30/21,350.76
  6. Step 6: Final answer
    x = 17,105.22

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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.