Home / 28,056.08-42,113.28-12,484.64

Finding the Fourth Proportional to 28,056.08, 42,113.28 and 12,484.64

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Solution

The fourth proportional to 28,056.08, 42,113.28 and 12,484.64 is: 18,739.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.08 : 42,113.28 = 12,484.64 : x
  2. Step 2: Convert to fraction form
    28,056.08/42,113.28 = 12,484.64/x
  3. Step 3: Cross multiply
    28,056.08x = 42,113.28 × 12,484.64
  4. Step 4: Simplify right side
    28,056.08x = 525,769,140.02
  5. Step 5: Solve for x
    x = 525,769,140.02/28,056.08
  6. Step 6: Final answer
    x = 18,739.94

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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.