Home / 30,248.62-45,372.93-12,479.02

Finding the Fourth Proportional to 30,248.62, 45,372.93 and 12,479.02

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Solution

The fourth proportional to 30,248.62, 45,372.93 and 12,479.02 is: 18,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,248.62 : 45,372.93 = 12,479.02 : x
  2. Step 2: Convert to fraction form
    30,248.62/45,372.93 = 12,479.02/x
  3. Step 3: Cross multiply
    30,248.62x = 45,372.93 × 12,479.02
  4. Step 4: Simplify right side
    30,248.62x = 566,209,700.93
  5. Step 5: Solve for x
    x = 566,209,700.93/30,248.62
  6. Step 6: Final answer
    x = 18,718.53

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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.