Home / 21,328.41-29,368.67-16,837.77

Finding the Fourth Proportional to 21,328.41, 29,368.67 and 16,837.77

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Solution

The fourth proportional to 21,328.41, 29,368.67 and 16,837.77 is: 23,185.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328.41 : 29,368.67 = 16,837.77 : x
  2. Step 2: Convert to fraction form
    21,328.41/29,368.67 = 16,837.77/x
  3. Step 3: Cross multiply
    21,328.41x = 29,368.67 × 16,837.77
  4. Step 4: Simplify right side
    21,328.41x = 494,502,826.48
  5. Step 5: Solve for x
    x = 494,502,826.48/21,328.41
  6. Step 6: Final answer
    x = 23,185.17

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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.