Home / 31,601.28-47,400.48-11,878.32

Finding the Fourth Proportional to 31,601.28, 47,400.48 and 11,878.32

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Solution

The fourth proportional to 31,601.28, 47,400.48 and 11,878.32 is: 17,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,601.28 : 47,400.48 = 11,878.32 : x
  2. Step 2: Convert to fraction form
    31,601.28/47,400.48 = 11,878.32/x
  3. Step 3: Cross multiply
    31,601.28x = 47,400.48 × 11,878.32
  4. Step 4: Simplify right side
    31,601.28x = 563,038,069.59
  5. Step 5: Solve for x
    x = 563,038,069.59/31,601.28
  6. Step 6: Final answer
    x = 17,816.94

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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.