Home / 28,008.24-42,041.40-12,436.80

Finding the Fourth Proportional to 28,008.24, 42,041.40 and 12,436.80

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Solution

The fourth proportional to 28,008.24, 42,041.40 and 12,436.80 is: 18,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.24 : 42,041.40 = 12,436.80 : x
  2. Step 2: Convert to fraction form
    28,008.24/42,041.40 = 12,436.80/x
  3. Step 3: Cross multiply
    28,008.24x = 42,041.40 × 12,436.80
  4. Step 4: Simplify right side
    28,008.24x = 522,860,483.52
  5. Step 5: Solve for x
    x = 522,860,483.52/28,008.24
  6. Step 6: Final answer
    x = 18,668.09

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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.