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Finding the Fourth Proportional to 30,462.52, 45,675.52 and 12,671.80

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Solution

The fourth proportional to 30,462.52, 45,675.52 and 12,671.80 is: 19,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,462.52 : 45,675.52 = 12,671.80 : x
  2. Step 2: Convert to fraction form
    30,462.52/45,675.52 = 12,671.80/x
  3. Step 3: Cross multiply
    30,462.52x = 45,675.52 × 12,671.80
  4. Step 4: Simplify right side
    30,462.52x = 578,791,054.34
  5. Step 5: Solve for x
    x = 578,791,054.34/30,462.52
  6. Step 6: Final answer
    x = 19,000.10

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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.