Home / 21,032.71-31,533.36-12,710.83

Finding the Fourth Proportional to 21,032.71, 31,533.36 and 12,710.83

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Solution

The fourth proportional to 21,032.71, 31,533.36 and 12,710.83 is: 19,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.71 : 31,533.36 = 12,710.83 : x
  2. Step 2: Convert to fraction form
    21,032.71/31,533.36 = 12,710.83/x
  3. Step 3: Cross multiply
    21,032.71x = 31,533.36 × 12,710.83
  4. Step 4: Simplify right side
    21,032.71x = 400,815,178.29
  5. Step 5: Solve for x
    x = 400,815,178.29/21,032.71
  6. Step 6: Final answer
    x = 19,056.76

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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.