Home / 20,341.02-28,083.65-13,965.55

Finding the Fourth Proportional to 20,341.02, 28,083.65 and 13,965.55

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Solution

The fourth proportional to 20,341.02, 28,083.65 and 13,965.55 is: 19,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.02 : 28,083.65 = 13,965.55 : x
  2. Step 2: Convert to fraction form
    20,341.02/28,083.65 = 13,965.55/x
  3. Step 3: Cross multiply
    20,341.02x = 28,083.65 × 13,965.55
  4. Step 4: Simplify right side
    20,341.02x = 392,203,653.17
  5. Step 5: Solve for x
    x = 392,203,653.17/20,341.02
  6. Step 6: Final answer
    x = 19,281.42

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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.