Home / 15,521.88-21,430.90-14,530.44

Finding the Fourth Proportional to 15,521.88, 21,430.90 and 14,530.44

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Solution

The fourth proportional to 15,521.88, 21,430.90 and 14,530.44 is: 20,062.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.88 : 21,430.90 = 14,530.44 : x
  2. Step 2: Convert to fraction form
    15,521.88/21,430.90 = 14,530.44/x
  3. Step 3: Cross multiply
    15,521.88x = 21,430.90 × 14,530.44
  4. Step 4: Simplify right side
    15,521.88x = 311,400,406.60
  5. Step 5: Solve for x
    x = 311,400,406.60/15,521.88
  6. Step 6: Final answer
    x = 20,062.03

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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.