Home / 28,387.68-42,563.20-13,596.24

Finding the Fourth Proportional to 28,387.68, 42,563.20 and 13,596.24

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Solution

The fourth proportional to 28,387.68, 42,563.20 and 13,596.24 is: 20,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387.68 : 42,563.20 = 13,596.24 : x
  2. Step 2: Convert to fraction form
    28,387.68/42,563.20 = 13,596.24/x
  3. Step 3: Cross multiply
    28,387.68x = 42,563.20 × 13,596.24
  4. Step 4: Simplify right side
    28,387.68x = 578,699,482.37
  5. Step 5: Solve for x
    x = 578,699,482.37/28,387.68
  6. Step 6: Final answer
    x = 20,385.59

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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.