Home / 30,775.80-42,474.06-17,347.32

Finding the Fourth Proportional to 30,775.80, 42,474.06 and 17,347.32

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Solution

The fourth proportional to 30,775.80, 42,474.06 and 17,347.32 is: 23,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,775.80 : 42,474.06 = 17,347.32 : x
  2. Step 2: Convert to fraction form
    30,775.80/42,474.06 = 17,347.32/x
  3. Step 3: Cross multiply
    30,775.80x = 42,474.06 × 17,347.32
  4. Step 4: Simplify right side
    30,775.80x = 736,811,110.52
  5. Step 5: Solve for x
    x = 736,811,110.52/30,775.80
  6. Step 6: Final answer
    x = 23,941.25

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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.