Home / 30,483.85-42,053.50-19,732.19

Finding the Fourth Proportional to 30,483.85, 42,053.50 and 19,732.19

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Solution

The fourth proportional to 30,483.85, 42,053.50 and 19,732.19 is: 27,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.85 : 42,053.50 = 19,732.19 : x
  2. Step 2: Convert to fraction form
    30,483.85/42,053.50 = 19,732.19/x
  3. Step 3: Cross multiply
    30,483.85x = 42,053.50 × 19,732.19
  4. Step 4: Simplify right side
    30,483.85x = 829,807,624.26
  5. Step 5: Solve for x
    x = 829,807,624.26/30,483.85
  6. Step 6: Final answer
    x = 27,221.22

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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.