Home / 28,328.29-42,461.24-11,679.19

Finding the Fourth Proportional to 28,328.29, 42,461.24 and 11,679.19

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Solution

The fourth proportional to 28,328.29, 42,461.24 and 11,679.19 is: 17,505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.29 : 42,461.24 = 11,679.19 : x
  2. Step 2: Convert to fraction form
    28,328.29/42,461.24 = 11,679.19/x
  3. Step 3: Cross multiply
    28,328.29x = 42,461.24 × 11,679.19
  4. Step 4: Simplify right side
    28,328.29x = 495,912,889.60
  5. Step 5: Solve for x
    x = 495,912,889.60/28,328.29
  6. Step 6: Final answer
    x = 17,505.92

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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.