Home / 40,220.79-55,507.73-22,319.18

Finding the Fourth Proportional to 40,220.79, 55,507.73 and 22,319.18

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Solution

The fourth proportional to 40,220.79, 55,507.73 and 22,319.18 is: 30,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,220.79 : 55,507.73 = 22,319.18 : x
  2. Step 2: Convert to fraction form
    40,220.79/55,507.73 = 22,319.18/x
  3. Step 3: Cross multiply
    40,220.79x = 55,507.73 × 22,319.18
  4. Step 4: Simplify right side
    40,220.79x = 1,238,886,961.83
  5. Step 5: Solve for x
    x = 1,238,886,961.83/40,220.79
  6. Step 6: Final answer
    x = 30,802.16

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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.