Home / 21,376.42-29,486.37-13,810.48

Finding the Fourth Proportional to 21,376.42, 29,486.37 and 13,810.48

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Solution

The fourth proportional to 21,376.42, 29,486.37 and 13,810.48 is: 19,050.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.42 : 29,486.37 = 13,810.48 : x
  2. Step 2: Convert to fraction form
    21,376.42/29,486.37 = 13,810.48/x
  3. Step 3: Cross multiply
    21,376.42x = 29,486.37 × 13,810.48
  4. Step 4: Simplify right side
    21,376.42x = 407,220,923.16
  5. Step 5: Solve for x
    x = 407,220,923.16/21,376.42
  6. Step 6: Final answer
    x = 19,050.01

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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.