Home / 31,816.08-47,660.48-19,158.82

Finding the Fourth Proportional to 31,816.08, 47,660.48 and 19,158.82

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Solution

The fourth proportional to 31,816.08, 47,660.48 and 19,158.82 is: 28,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,816.08 : 47,660.48 = 19,158.82 : x
  2. Step 2: Convert to fraction form
    31,816.08/47,660.48 = 19,158.82/x
  3. Step 3: Cross multiply
    31,816.08x = 47,660.48 × 19,158.82
  4. Step 4: Simplify right side
    31,816.08x = 913,118,486.18
  5. Step 5: Solve for x
    x = 913,118,486.18/31,816.08
  6. Step 6: Final answer
    x = 28,699.91

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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.