Home / 30,368.43-45,543.74-10,643.31

Finding the Fourth Proportional to 30,368.43, 45,543.74 and 10,643.31

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Solution

The fourth proportional to 30,368.43, 45,543.74 and 10,643.31 is: 15,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.43 : 45,543.74 = 10,643.31 : x
  2. Step 2: Convert to fraction form
    30,368.43/45,543.74 = 10,643.31/x
  3. Step 3: Cross multiply
    30,368.43x = 45,543.74 × 10,643.31
  4. Step 4: Simplify right side
    30,368.43x = 484,736,090.16
  5. Step 5: Solve for x
    x = 484,736,090.16/30,368.43
  6. Step 6: Final answer
    x = 15,961.84

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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.