Home / 31,680.17-47,533.47-13,901.64

Finding the Fourth Proportional to 31,680.17, 47,533.47 and 13,901.64

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Solution

The fourth proportional to 31,680.17, 47,533.47 and 13,901.64 is: 20,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.17 : 47,533.47 = 13,901.64 : x
  2. Step 2: Convert to fraction form
    31,680.17/47,533.47 = 13,901.64/x
  3. Step 3: Cross multiply
    31,680.17x = 47,533.47 × 13,901.64
  4. Step 4: Simplify right side
    31,680.17x = 660,793,187.89
  5. Step 5: Solve for x
    x = 660,793,187.89/31,680.17
  6. Step 6: Final answer
    x = 20,858.26

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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.