Home / 21,477.58-29,630.29-14,406.28

Finding the Fourth Proportional to 21,477.58, 29,630.29 and 14,406.28

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Solution

The fourth proportional to 21,477.58, 29,630.29 and 14,406.28 is: 19,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.58 : 29,630.29 = 14,406.28 : x
  2. Step 2: Convert to fraction form
    21,477.58/29,630.29 = 14,406.28/x
  3. Step 3: Cross multiply
    21,477.58x = 29,630.29 × 14,406.28
  4. Step 4: Simplify right side
    21,477.58x = 426,862,254.22
  5. Step 5: Solve for x
    x = 426,862,254.22/21,477.58
  6. Step 6: Final answer
    x = 19,874.78

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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.