Home / 45,328.65-67,969.50-20,347.18

Finding the Fourth Proportional to 45,328.65, 67,969.50 and 20,347.18

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Solution

The fourth proportional to 45,328.65, 67,969.50 and 20,347.18 is: 30,510.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,328.65 : 67,969.50 = 20,347.18 : x
  2. Step 2: Convert to fraction form
    45,328.65/67,969.50 = 20,347.18/x
  3. Step 3: Cross multiply
    45,328.65x = 67,969.50 × 20,347.18
  4. Step 4: Simplify right side
    45,328.65x = 1,382,987,958.79
  5. Step 5: Solve for x
    x = 1,382,987,958.79/45,328.65
  6. Step 6: Final answer
    x = 30,510.24

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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.