Home / 30,656.87-42,307.32-17,229.35

Finding the Fourth Proportional to 30,656.87, 42,307.32 and 17,229.35

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Solution

The fourth proportional to 30,656.87, 42,307.32 and 17,229.35 is: 23,776.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.87 : 42,307.32 = 17,229.35 : x
  2. Step 2: Convert to fraction form
    30,656.87/42,307.32 = 17,229.35/x
  3. Step 3: Cross multiply
    30,656.87x = 42,307.32 × 17,229.35
  4. Step 4: Simplify right side
    30,656.87x = 728,927,412.31
  5. Step 5: Solve for x
    x = 728,927,412.31/30,656.87
  6. Step 6: Final answer
    x = 23,776.97

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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.