Home / 21,254.32-29,344.08-13,703.32

Finding the Fourth Proportional to 21,254.32, 29,344.08 and 13,703.32

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Solution

The fourth proportional to 21,254.32, 29,344.08 and 13,703.32 is: 18,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.32 : 29,344.08 = 13,703.32 : x
  2. Step 2: Convert to fraction form
    21,254.32/29,344.08 = 13,703.32/x
  3. Step 3: Cross multiply
    21,254.32x = 29,344.08 × 13,703.32
  4. Step 4: Simplify right side
    21,254.32x = 402,111,318.35
  5. Step 5: Solve for x
    x = 402,111,318.35/21,254.32
  6. Step 6: Final answer
    x = 18,919.04

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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.