Home / 21,505.02-29,686.68-14,435.34

Finding the Fourth Proportional to 21,505.02, 29,686.68 and 14,435.34

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Solution

The fourth proportional to 21,505.02, 29,686.68 and 14,435.34 is: 19,927.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.02 : 29,686.68 = 14,435.34 : x
  2. Step 2: Convert to fraction form
    21,505.02/29,686.68 = 14,435.34/x
  3. Step 3: Cross multiply
    21,505.02x = 29,686.68 × 14,435.34
  4. Step 4: Simplify right side
    21,505.02x = 428,537,319.27
  5. Step 5: Solve for x
    x = 428,537,319.27/21,505.02
  6. Step 6: Final answer
    x = 19,927.32

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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.