Home / 38,712.40-58,009.72-17,640.16

Finding the Fourth Proportional to 38,712.40, 58,009.72 and 17,640.16

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Solution

The fourth proportional to 38,712.40, 58,009.72 and 17,640.16 is: 26,433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,712.40 : 58,009.72 = 17,640.16 : x
  2. Step 2: Convert to fraction form
    38,712.40/58,009.72 = 17,640.16/x
  3. Step 3: Cross multiply
    38,712.40x = 58,009.72 × 17,640.16
  4. Step 4: Simplify right side
    38,712.40x = 1,023,300,742.36
  5. Step 5: Solve for x
    x = 1,023,300,742.36/38,712.40
  6. Step 6: Final answer
    x = 26,433.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.