Home / 21,536.04-29,724.58-13,157.32

Finding the Fourth Proportional to 21,536.04, 29,724.58 and 13,157.32

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Solution

The fourth proportional to 21,536.04, 29,724.58 and 13,157.32 is: 18,160.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,536.04 : 29,724.58 = 13,157.32 : x
  2. Step 2: Convert to fraction form
    21,536.04/29,724.58 = 13,157.32/x
  3. Step 3: Cross multiply
    21,536.04x = 29,724.58 × 13,157.32
  4. Step 4: Simplify right side
    21,536.04x = 391,095,810.93
  5. Step 5: Solve for x
    x = 391,095,810.93/21,536.04
  6. Step 6: Final answer
    x = 18,160.06

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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.