Home / 19,415.40-29,123.10-17,629.80

Finding the Fourth Proportional to 19,415.40, 29,123.10 and 17,629.80

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Solution

The fourth proportional to 19,415.40, 29,123.10 and 17,629.80 is: 26,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.40 : 29,123.10 = 17,629.80 : x
  2. Step 2: Convert to fraction form
    19,415.40/29,123.10 = 17,629.80/x
  3. Step 3: Cross multiply
    19,415.40x = 29,123.10 × 17,629.80
  4. Step 4: Simplify right side
    19,415.40x = 513,434,428.38
  5. Step 5: Solve for x
    x = 513,434,428.38/19,415.40
  6. Step 6: Final answer
    x = 26,444.70

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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.