Home / 28,047.08-42,064.68-10,518.20

Finding the Fourth Proportional to 28,047.08, 42,064.68 and 10,518.20

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Solution

The fourth proportional to 28,047.08, 42,064.68 and 10,518.20 is: 15,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.08 : 42,064.68 = 10,518.20 : x
  2. Step 2: Convert to fraction form
    28,047.08/42,064.68 = 10,518.20/x
  3. Step 3: Cross multiply
    28,047.08x = 42,064.68 × 10,518.20
  4. Step 4: Simplify right side
    28,047.08x = 442,444,717.18
  5. Step 5: Solve for x
    x = 442,444,717.18/28,047.08
  6. Step 6: Final answer
    x = 15,775.07

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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.