Home / 30,899.52-42,643.73-17,472.28

Finding the Fourth Proportional to 30,899.52, 42,643.73 and 17,472.28

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Solution

The fourth proportional to 30,899.52, 42,643.73 and 17,472.28 is: 24,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,899.52 : 42,643.73 = 17,472.28 : x
  2. Step 2: Convert to fraction form
    30,899.52/42,643.73 = 17,472.28/x
  3. Step 3: Cross multiply
    30,899.52x = 42,643.73 × 17,472.28
  4. Step 4: Simplify right side
    30,899.52x = 745,083,190.80
  5. Step 5: Solve for x
    x = 745,083,190.80/30,899.52
  6. Step 6: Final answer
    x = 24,113.10

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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.