Home / 30,287.16-45,438.35-17,817.62

Finding the Fourth Proportional to 30,287.16, 45,438.35 and 17,817.62

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Solution

The fourth proportional to 30,287.16, 45,438.35 and 17,817.62 is: 26,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.16 : 45,438.35 = 17,817.62 : x
  2. Step 2: Convert to fraction form
    30,287.16/45,438.35 = 17,817.62/x
  3. Step 3: Cross multiply
    30,287.16x = 45,438.35 × 17,817.62
  4. Step 4: Simplify right side
    30,287.16x = 809,602,937.45
  5. Step 5: Solve for x
    x = 809,602,937.45/30,287.16
  6. Step 6: Final answer
    x = 26,730.90

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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.