Home / 28,350.68-42,482.90-13,539.20

Finding the Fourth Proportional to 28,350.68, 42,482.90 and 13,539.20

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Solution

The fourth proportional to 28,350.68, 42,482.90 and 13,539.20 is: 20,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.68 : 42,482.90 = 13,539.20 : x
  2. Step 2: Convert to fraction form
    28,350.68/42,482.90 = 13,539.20/x
  3. Step 3: Cross multiply
    28,350.68x = 42,482.90 × 13,539.20
  4. Step 4: Simplify right side
    28,350.68x = 575,184,479.68
  5. Step 5: Solve for x
    x = 575,184,479.68/28,350.68
  6. Step 6: Final answer
    x = 20,288.21

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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.