Home / 19,128.90-26,390.48-14,105.02

Finding the Fourth Proportional to 19,128.90, 26,390.48 and 14,105.02

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Solution

The fourth proportional to 19,128.90, 26,390.48 and 14,105.02 is: 19,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.90 : 26,390.48 = 14,105.02 : x
  2. Step 2: Convert to fraction form
    19,128.90/26,390.48 = 14,105.02/x
  3. Step 3: Cross multiply
    19,128.90x = 26,390.48 × 14,105.02
  4. Step 4: Simplify right side
    19,128.90x = 372,238,248.21
  5. Step 5: Solve for x
    x = 372,238,248.21/19,128.90
  6. Step 6: Final answer
    x = 19,459.47

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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.