Home / 19,648.75-27,118.02-12,590.21

Finding the Fourth Proportional to 19,648.75, 27,118.02 and 12,590.21

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Solution

The fourth proportional to 19,648.75, 27,118.02 and 12,590.21 is: 17,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.75 : 27,118.02 = 12,590.21 : x
  2. Step 2: Convert to fraction form
    19,648.75/27,118.02 = 12,590.21/x
  3. Step 3: Cross multiply
    19,648.75x = 27,118.02 × 12,590.21
  4. Step 4: Simplify right side
    19,648.75x = 341,421,566.58
  5. Step 5: Solve for x
    x = 341,421,566.58/19,648.75
  6. Step 6: Final answer
    x = 17,376.25

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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.