Home / 28,082.10-42,129.09-10,552.08

Finding the Fourth Proportional to 28,082.10, 42,129.09 and 10,552.08

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Solution

The fourth proportional to 28,082.10, 42,129.09 and 10,552.08 is: 15,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.10 : 42,129.09 = 10,552.08 : x
  2. Step 2: Convert to fraction form
    28,082.10/42,129.09 = 10,552.08/x
  3. Step 3: Cross multiply
    28,082.10x = 42,129.09 × 10,552.08
  4. Step 4: Simplify right side
    28,082.10x = 444,549,528.01
  5. Step 5: Solve for x
    x = 444,549,528.01/28,082.10
  6. Step 6: Final answer
    x = 15,830.35

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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.