Home / 20,549.48-28,328.82-13,823.24

Finding the Fourth Proportional to 20,549.48, 28,328.82 and 13,823.24

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Solution

The fourth proportional to 20,549.48, 28,328.82 and 13,823.24 is: 19,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.48 : 28,328.82 = 13,823.24 : x
  2. Step 2: Convert to fraction form
    20,549.48/28,328.82 = 13,823.24/x
  3. Step 3: Cross multiply
    20,549.48x = 28,328.82 × 13,823.24
  4. Step 4: Simplify right side
    20,549.48x = 391,596,077.78
  5. Step 5: Solve for x
    x = 391,596,077.78/20,549.48
  6. Step 6: Final answer
    x = 19,056.25

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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.