Home / 28,502.04-42,750.90-10,021.08

Finding the Fourth Proportional to 28,502.04, 42,750.90 and 10,021.08

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Solution

The fourth proportional to 28,502.04, 42,750.90 and 10,021.08 is: 15,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.04 : 42,750.90 = 10,021.08 : x
  2. Step 2: Convert to fraction form
    28,502.04/42,750.90 = 10,021.08/x
  3. Step 3: Cross multiply
    28,502.04x = 42,750.90 × 10,021.08
  4. Step 4: Simplify right side
    28,502.04x = 428,410,188.97
  5. Step 5: Solve for x
    x = 428,410,188.97/28,502.04
  6. Step 6: Final answer
    x = 15,030.86

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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.