Home / 20,400.15-30,598.77-5,607.93

Finding the Fourth Proportional to 20,400.15, 30,598.77 and 5,607.93

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Solution

The fourth proportional to 20,400.15, 30,598.77 and 5,607.93 is: 8,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.15 : 30,598.77 = 5,607.93 : x
  2. Step 2: Convert to fraction form
    20,400.15/30,598.77 = 5,607.93/x
  3. Step 3: Cross multiply
    20,400.15x = 30,598.77 × 5,607.93
  4. Step 4: Simplify right side
    20,400.15x = 171,595,760.25
  5. Step 5: Solve for x
    x = 171,595,760.25/20,400.15
  6. Step 6: Final answer
    x = 8,411.50

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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.