Home / 30,989.95-42,751.52-22,473.39

Finding the Fourth Proportional to 30,989.95, 42,751.52 and 22,473.39

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Solution

The fourth proportional to 30,989.95, 42,751.52 and 22,473.39 is: 31,002.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.95 : 42,751.52 = 22,473.39 : x
  2. Step 2: Convert to fraction form
    30,989.95/42,751.52 = 22,473.39/x
  3. Step 3: Cross multiply
    30,989.95x = 42,751.52 × 22,473.39
  4. Step 4: Simplify right side
    30,989.95x = 960,771,368.30
  5. Step 5: Solve for x
    x = 960,771,368.30/30,989.95
  6. Step 6: Final answer
    x = 31,002.68

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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.