Home / 19,419.34-26,798.43-10,921.46

Finding the Fourth Proportional to 19,419.34, 26,798.43 and 10,921.46

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Solution

The fourth proportional to 19,419.34, 26,798.43 and 10,921.46 is: 15,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.34 : 26,798.43 = 10,921.46 : x
  2. Step 2: Convert to fraction form
    19,419.34/26,798.43 = 10,921.46/x
  3. Step 3: Cross multiply
    19,419.34x = 26,798.43 × 10,921.46
  4. Step 4: Simplify right side
    19,419.34x = 292,677,792.71
  5. Step 5: Solve for x
    x = 292,677,792.71/19,419.34
  6. Step 6: Final answer
    x = 15,071.46

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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.