Home / 21,759.48-30,032.40-14,207.04

Finding the Fourth Proportional to 21,759.48, 30,032.40 and 14,207.04

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Solution

The fourth proportional to 21,759.48, 30,032.40 and 14,207.04 is: 19,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,759.48 : 30,032.40 = 14,207.04 : x
  2. Step 2: Convert to fraction form
    21,759.48/30,032.40 = 14,207.04/x
  3. Step 3: Cross multiply
    21,759.48x = 30,032.40 × 14,207.04
  4. Step 4: Simplify right side
    21,759.48x = 426,671,508.10
  5. Step 5: Solve for x
    x = 426,671,508.10/21,759.48
  6. Step 6: Final answer
    x = 19,608.53

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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.