Home / 39,023.17-53,852.10-21,118.17

Finding the Fourth Proportional to 39,023.17, 53,852.10 and 21,118.17

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Solution

The fourth proportional to 39,023.17, 53,852.10 and 21,118.17 is: 29,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,023.17 : 53,852.10 = 21,118.17 : x
  2. Step 2: Convert to fraction form
    39,023.17/53,852.10 = 21,118.17/x
  3. Step 3: Cross multiply
    39,023.17x = 53,852.10 × 21,118.17
  4. Step 4: Simplify right side
    39,023.17x = 1,137,257,533.40
  5. Step 5: Solve for x
    x = 1,137,257,533.40/39,023.17
  6. Step 6: Final answer
    x = 29,143.14

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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.