Home / 30,381.53-45,573.66-9,320.04

Finding the Fourth Proportional to 30,381.53, 45,573.66 and 9,320.04

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Solution

The fourth proportional to 30,381.53, 45,573.66 and 9,320.04 is: 13,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,381.53 : 45,573.66 = 9,320.04 : x
  2. Step 2: Convert to fraction form
    30,381.53/45,573.66 = 9,320.04/x
  3. Step 3: Cross multiply
    30,381.53x = 45,573.66 × 9,320.04
  4. Step 4: Simplify right side
    30,381.53x = 424,748,334.15
  5. Step 5: Solve for x
    x = 424,748,334.15/30,381.53
  6. Step 6: Final answer
    x = 13,980.48

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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.