Home / 30,860.50-42,575.75-22,813.47

Finding the Fourth Proportional to 30,860.50, 42,575.75 and 22,813.47

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Solution

The fourth proportional to 30,860.50, 42,575.75 and 22,813.47 is: 31,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.50 : 42,575.75 = 22,813.47 : x
  2. Step 2: Convert to fraction form
    30,860.50/42,575.75 = 22,813.47/x
  3. Step 3: Cross multiply
    30,860.50x = 42,575.75 × 22,813.47
  4. Step 4: Simplify right side
    30,860.50x = 971,300,669.46
  5. Step 5: Solve for x
    x = 971,300,669.46/30,860.50
  6. Step 6: Final answer
    x = 31,473.91

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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.