Home / 19,128.90-26,390.49-14,105.01

Finding the Fourth Proportional to 19,128.90, 26,390.49 and 14,105.01

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Solution

The fourth proportional to 19,128.90, 26,390.49 and 14,105.01 is: 19,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.90 : 26,390.49 = 14,105.01 : x
  2. Step 2: Convert to fraction form
    19,128.90/26,390.49 = 14,105.01/x
  3. Step 3: Cross multiply
    19,128.90x = 26,390.49 × 14,105.01
  4. Step 4: Simplify right side
    19,128.90x = 372,238,125.35
  5. Step 5: Solve for x
    x = 372,238,125.35/19,128.90
  6. Step 6: Final answer
    x = 19,459.46

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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.