Home / 28,034.08-42,043.80-13,239.04

Finding the Fourth Proportional to 28,034.08, 42,043.80 and 13,239.04

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Solution

The fourth proportional to 28,034.08, 42,043.80 and 13,239.04 is: 19,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.08 : 42,043.80 = 13,239.04 : x
  2. Step 2: Convert to fraction form
    28,034.08/42,043.80 = 13,239.04/x
  3. Step 3: Cross multiply
    28,034.08x = 42,043.80 × 13,239.04
  4. Step 4: Simplify right side
    28,034.08x = 556,619,549.95
  5. Step 5: Solve for x
    x = 556,619,549.95/28,034.08
  6. Step 6: Final answer
    x = 19,855.10

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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.