Home / 20,501.28-30,750.12-5,710.50

Finding the Fourth Proportional to 20,501.28, 30,750.12 and 5,710.50

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Solution

The fourth proportional to 20,501.28, 30,750.12 and 5,710.50 is: 8,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.28 : 30,750.12 = 5,710.50 : x
  2. Step 2: Convert to fraction form
    20,501.28/30,750.12 = 5,710.50/x
  3. Step 3: Cross multiply
    20,501.28x = 30,750.12 × 5,710.50
  4. Step 4: Simplify right side
    20,501.28x = 175,598,560.26
  5. Step 5: Solve for x
    x = 175,598,560.26/20,501.28
  6. Step 6: Final answer
    x = 8,565.25

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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.