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Finding the Fourth Proportional to 30,595.61, 45,885.07 and 8,403.71

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Solution

The fourth proportional to 30,595.61, 45,885.07 and 8,403.71 is: 12,603.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,595.61 : 45,885.07 = 8,403.71 : x
  2. Step 2: Convert to fraction form
    30,595.61/45,885.07 = 8,403.71/x
  3. Step 3: Cross multiply
    30,595.61x = 45,885.07 × 8,403.71
  4. Step 4: Simplify right side
    30,595.61x = 385,604,915.31
  5. Step 5: Solve for x
    x = 385,604,915.31/30,595.61
  6. Step 6: Final answer
    x = 12,603.27

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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.