Home / 30,603.63-42,224.92-18,666.26

Finding the Fourth Proportional to 30,603.63, 42,224.92 and 18,666.26

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Solution

The fourth proportional to 30,603.63, 42,224.92 and 18,666.26 is: 25,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603.63 : 42,224.92 = 18,666.26 : x
  2. Step 2: Convert to fraction form
    30,603.63/42,224.92 = 18,666.26/x
  3. Step 3: Cross multiply
    30,603.63x = 42,224.92 × 18,666.26
  4. Step 4: Simplify right side
    30,603.63x = 788,181,077.41
  5. Step 5: Solve for x
    x = 788,181,077.41/30,603.63
  6. Step 6: Final answer
    x = 25,754.50

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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.