Home / 14,390.20-21,566.10-10,281.40

Finding the Fourth Proportional to 14,390.20, 21,566.10 and 10,281.40

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Solution

The fourth proportional to 14,390.20, 21,566.10 and 10,281.40 is: 15,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.20 : 21,566.10 = 10,281.40 : x
  2. Step 2: Convert to fraction form
    14,390.20/21,566.10 = 10,281.40/x
  3. Step 3: Cross multiply
    14,390.20x = 21,566.10 × 10,281.40
  4. Step 4: Simplify right side
    14,390.20x = 221,729,700.54
  5. Step 5: Solve for x
    x = 221,729,700.54/14,390.20
  6. Step 6: Final answer
    x = 15,408.38

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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.