Home / 14,237.60-21,356.40-13,557.20

Finding the Fourth Proportional to 14,237.60, 21,356.40 and 13,557.20

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Solution

The fourth proportional to 14,237.60, 21,356.40 and 13,557.20 is: 20,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,237.60 : 21,356.40 = 13,557.20 : x
  2. Step 2: Convert to fraction form
    14,237.60/21,356.40 = 13,557.20/x
  3. Step 3: Cross multiply
    14,237.60x = 21,356.40 × 13,557.20
  4. Step 4: Simplify right side
    14,237.60x = 289,532,986.08
  5. Step 5: Solve for x
    x = 289,532,986.08/14,237.60
  6. Step 6: Final answer
    x = 20,335.80

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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.