Home / 38,985.40-58,535.70-30,230.20

Finding the Fourth Proportional to 38,985.40, 58,535.70 and 30,230.20

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Solution

The fourth proportional to 38,985.40, 58,535.70 and 30,230.20 is: 45,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.40 : 58,535.70 = 30,230.20 : x
  2. Step 2: Convert to fraction form
    38,985.40/58,535.70 = 30,230.20/x
  3. Step 3: Cross multiply
    38,985.40x = 58,535.70 × 30,230.20
  4. Step 4: Simplify right side
    38,985.40x = 1,769,545,918.14
  5. Step 5: Solve for x
    x = 1,769,545,918.14/38,985.40
  6. Step 6: Final answer
    x = 45,389.96

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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.