Home / 28,045.08-42,051.84-9,315.09

Finding the Fourth Proportional to 28,045.08, 42,051.84 and 9,315.09

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Solution

The fourth proportional to 28,045.08, 42,051.84 and 9,315.09 is: 13,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.08 : 42,051.84 = 9,315.09 : x
  2. Step 2: Convert to fraction form
    28,045.08/42,051.84 = 9,315.09/x
  3. Step 3: Cross multiply
    28,045.08x = 42,051.84 × 9,315.09
  4. Step 4: Simplify right side
    28,045.08x = 391,716,674.27
  5. Step 5: Solve for x
    x = 391,716,674.27/28,045.08
  6. Step 6: Final answer
    x = 13,967.39

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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.