Home / 19,359.66-29,036.02-5,128.23

Finding the Fourth Proportional to 19,359.66, 29,036.02 and 5,128.23

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Solution

The fourth proportional to 19,359.66, 29,036.02 and 5,128.23 is: 7,691.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.66 : 29,036.02 = 5,128.23 : x
  2. Step 2: Convert to fraction form
    19,359.66/29,036.02 = 5,128.23/x
  3. Step 3: Cross multiply
    19,359.66x = 29,036.02 × 5,128.23
  4. Step 4: Simplify right side
    19,359.66x = 148,903,388.84
  5. Step 5: Solve for x
    x = 148,903,388.84/19,359.66
  6. Step 6: Final answer
    x = 7,691.43

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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.