Home / 30,041.04-45,057.65-7,856.13

Finding the Fourth Proportional to 30,041.04, 45,057.65 and 7,856.13

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Solution

The fourth proportional to 30,041.04, 45,057.65 and 7,856.13 is: 11,783.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.04 : 45,057.65 = 7,856.13 : x
  2. Step 2: Convert to fraction form
    30,041.04/45,057.65 = 7,856.13/x
  3. Step 3: Cross multiply
    30,041.04x = 45,057.65 × 7,856.13
  4. Step 4: Simplify right side
    30,041.04x = 353,978,643.25
  5. Step 5: Solve for x
    x = 353,978,643.25/30,041.04
  6. Step 6: Final answer
    x = 11,783.17

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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.