Home / 21,403.02-29,528.92-12,443.14

Finding the Fourth Proportional to 21,403.02, 29,528.92 and 12,443.14

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Solution

The fourth proportional to 21,403.02, 29,528.92 and 12,443.14 is: 17,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.02 : 29,528.92 = 12,443.14 : x
  2. Step 2: Convert to fraction form
    21,403.02/29,528.92 = 12,443.14/x
  3. Step 3: Cross multiply
    21,403.02x = 29,528.92 × 12,443.14
  4. Step 4: Simplify right side
    21,403.02x = 367,432,485.61
  5. Step 5: Solve for x
    x = 367,432,485.61/21,403.02
  6. Step 6: Final answer
    x = 17,167.32

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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.