Home / 28,254.42-42,381.63-10,720.08

Finding the Fourth Proportional to 28,254.42, 42,381.63 and 10,720.08

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Solution

The fourth proportional to 28,254.42, 42,381.63 and 10,720.08 is: 16,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.42 : 42,381.63 = 10,720.08 : x
  2. Step 2: Convert to fraction form
    28,254.42/42,381.63 = 10,720.08/x
  3. Step 3: Cross multiply
    28,254.42x = 42,381.63 × 10,720.08
  4. Step 4: Simplify right side
    28,254.42x = 454,334,464.13
  5. Step 5: Solve for x
    x = 454,334,464.13/28,254.42
  6. Step 6: Final answer
    x = 16,080.12

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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.