Home / 31,660.94-47,457.23-20,575.58

Finding the Fourth Proportional to 31,660.94, 47,457.23 and 20,575.58

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Solution

The fourth proportional to 31,660.94, 47,457.23 and 20,575.58 is: 30,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.94 : 47,457.23 = 20,575.58 : x
  2. Step 2: Convert to fraction form
    31,660.94/47,457.23 = 20,575.58/x
  3. Step 3: Cross multiply
    31,660.94x = 47,457.23 × 20,575.58
  4. Step 4: Simplify right side
    31,660.94x = 976,459,947.40
  5. Step 5: Solve for x
    x = 976,459,947.40/31,660.94
  6. Step 6: Final answer
    x = 30,841.16

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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.