Home / 21,071.86-29,054.91-14,361.55

Finding the Fourth Proportional to 21,071.86, 29,054.91 and 14,361.55

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Solution

The fourth proportional to 21,071.86, 29,054.91 and 14,361.55 is: 19,802.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071.86 : 29,054.91 = 14,361.55 : x
  2. Step 2: Convert to fraction form
    21,071.86/29,054.91 = 14,361.55/x
  3. Step 3: Cross multiply
    21,071.86x = 29,054.91 × 14,361.55
  4. Step 4: Simplify right side
    21,071.86x = 417,273,542.71
  5. Step 5: Solve for x
    x = 417,273,542.71/21,071.86
  6. Step 6: Final answer
    x = 19,802.41

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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.