Home / 20,594.56-28,420.64-12,094.40

Finding the Fourth Proportional to 20,594.56, 28,420.64 and 12,094.40

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Solution

The fourth proportional to 20,594.56, 28,420.64 and 12,094.40 is: 16,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.56 : 28,420.64 = 12,094.40 : x
  2. Step 2: Convert to fraction form
    20,594.56/28,420.64 = 12,094.40/x
  3. Step 3: Cross multiply
    20,594.56x = 28,420.64 × 12,094.40
  4. Step 4: Simplify right side
    20,594.56x = 343,730,588.42
  5. Step 5: Solve for x
    x = 343,730,588.42/20,594.56
  6. Step 6: Final answer
    x = 16,690.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.