Home / 30,567.86-42,192.46-19,812.36

Finding the Fourth Proportional to 30,567.86, 42,192.46 and 19,812.36

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Solution

The fourth proportional to 30,567.86, 42,192.46 and 19,812.36 is: 27,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.86 : 42,192.46 = 19,812.36 : x
  2. Step 2: Convert to fraction form
    30,567.86/42,192.46 = 19,812.36/x
  3. Step 3: Cross multiply
    30,567.86x = 42,192.46 × 19,812.36
  4. Step 4: Simplify right side
    30,567.86x = 835,932,206.81
  5. Step 5: Solve for x
    x = 835,932,206.81/30,567.86
  6. Step 6: Final answer
    x = 27,346.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.