Home / 20,347.28-30,509.16-6,303.56

Finding the Fourth Proportional to 20,347.28, 30,509.16 and 6,303.56

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Solution

The fourth proportional to 20,347.28, 30,509.16 and 6,303.56 is: 9,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.28 : 30,509.16 = 6,303.56 : x
  2. Step 2: Convert to fraction form
    20,347.28/30,509.16 = 6,303.56/x
  3. Step 3: Cross multiply
    20,347.28x = 30,509.16 × 6,303.56
  4. Step 4: Simplify right side
    20,347.28x = 192,316,320.61
  5. Step 5: Solve for x
    x = 192,316,320.61/20,347.28
  6. Step 6: Final answer
    x = 9,451.70

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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.