Home / 20,391.23-28,123.67-16,848.29

Finding the Fourth Proportional to 20,391.23, 28,123.67 and 16,848.29

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Solution

The fourth proportional to 20,391.23, 28,123.67 and 16,848.29 is: 23,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.23 : 28,123.67 = 16,848.29 : x
  2. Step 2: Convert to fraction form
    20,391.23/28,123.67 = 16,848.29/x
  3. Step 3: Cross multiply
    20,391.23x = 28,123.67 × 16,848.29
  4. Step 4: Simplify right side
    20,391.23x = 473,835,663.78
  5. Step 5: Solve for x
    x = 473,835,663.78/20,391.23
  6. Step 6: Final answer
    x = 23,237.23

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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.