Home / 19,543.32-26,970.30-11,159.64

Finding the Fourth Proportional to 19,543.32, 26,970.30 and 11,159.64

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Solution

The fourth proportional to 19,543.32, 26,970.30 and 11,159.64 is: 15,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.32 : 26,970.30 = 11,159.64 : x
  2. Step 2: Convert to fraction form
    19,543.32/26,970.30 = 11,159.64/x
  3. Step 3: Cross multiply
    19,543.32x = 26,970.30 × 11,159.64
  4. Step 4: Simplify right side
    19,543.32x = 300,978,838.69
  5. Step 5: Solve for x
    x = 300,978,838.69/19,543.32
  6. Step 6: Final answer
    x = 15,400.60

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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.