Home / 30,443.50-45,678.93-19,347.31

Finding the Fourth Proportional to 30,443.50, 45,678.93 and 19,347.31

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Solution

The fourth proportional to 30,443.50, 45,678.93 and 19,347.31 is: 29,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.50 : 45,678.93 = 19,347.31 : x
  2. Step 2: Convert to fraction form
    30,443.50/45,678.93 = 19,347.31/x
  3. Step 3: Cross multiply
    30,443.50x = 45,678.93 × 19,347.31
  4. Step 4: Simplify right side
    30,443.50x = 883,764,419.18
  5. Step 5: Solve for x
    x = 883,764,419.18/30,443.50
  6. Step 6: Final answer
    x = 29,029.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.