Home / 38,386.17-52,972.05-21,390.33

Finding the Fourth Proportional to 38,386.17, 52,972.05 and 21,390.33

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Solution

The fourth proportional to 38,386.17, 52,972.05 and 21,390.33 is: 29,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.17 : 52,972.05 = 21,390.33 : x
  2. Step 2: Convert to fraction form
    38,386.17/52,972.05 = 21,390.33/x
  3. Step 3: Cross multiply
    38,386.17x = 52,972.05 × 21,390.33
  4. Step 4: Simplify right side
    38,386.17x = 1,133,089,630.28
  5. Step 5: Solve for x
    x = 1,133,089,630.28/38,386.17
  6. Step 6: Final answer
    x = 29,518.17

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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.