Home / 28,611.10-42,925.05-12,812.62

Finding the Fourth Proportional to 28,611.10, 42,925.05 and 12,812.62

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Solution

The fourth proportional to 28,611.10, 42,925.05 and 12,812.62 is: 19,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.10 : 42,925.05 = 12,812.62 : x
  2. Step 2: Convert to fraction form
    28,611.10/42,925.05 = 12,812.62/x
  3. Step 3: Cross multiply
    28,611.10x = 42,925.05 × 12,812.62
  4. Step 4: Simplify right side
    28,611.10x = 549,982,354.13
  5. Step 5: Solve for x
    x = 549,982,354.13/28,611.10
  6. Step 6: Final answer
    x = 19,222.69

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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.