Home / 30,627.28-45,935.40-8,437.80

Finding the Fourth Proportional to 30,627.28, 45,935.40 and 8,437.80

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Solution

The fourth proportional to 30,627.28, 45,935.40 and 8,437.80 is: 12,655.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,627.28 : 45,935.40 = 8,437.80 : x
  2. Step 2: Convert to fraction form
    30,627.28/45,935.40 = 8,437.80/x
  3. Step 3: Cross multiply
    30,627.28x = 45,935.40 × 8,437.80
  4. Step 4: Simplify right side
    30,627.28x = 387,593,718.12
  5. Step 5: Solve for x
    x = 387,593,718.12/30,627.28
  6. Step 6: Final answer
    x = 12,655.18

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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.