Home / 30,749.23-42,438-17,323.14

Finding the Fourth Proportional to 30,749.23, 42,438 and 17,323.14

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Solution

The fourth proportional to 30,749.23, 42,438 and 17,323.14 is: 23,908.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,749.23 : 42,438 = 17,323.14 : x
  2. Step 2: Convert to fraction form
    30,749.23/42,438 = 17,323.14/x
  3. Step 3: Cross multiply
    30,749.23x = 42,438 × 17,323.14
  4. Step 4: Simplify right side
    30,749.23x = 735,159,415.32
  5. Step 5: Solve for x
    x = 735,159,415.32/30,749.23
  6. Step 6: Final answer
    x = 23,908.22

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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.