Home / 30,301.60-41,809.08-18,362.20

Finding the Fourth Proportional to 30,301.60, 41,809.08 and 18,362.20

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Solution

The fourth proportional to 30,301.60, 41,809.08 and 18,362.20 is: 25,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,301.60 : 41,809.08 = 18,362.20 : x
  2. Step 2: Convert to fraction form
    30,301.60/41,809.08 = 18,362.20/x
  3. Step 3: Cross multiply
    30,301.60x = 41,809.08 × 18,362.20
  4. Step 4: Simplify right side
    30,301.60x = 767,706,688.78
  5. Step 5: Solve for x
    x = 767,706,688.78/30,301.60
  6. Step 6: Final answer
    x = 25,335.52

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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.