Home / 31,325.81-46,990.88-12,606.00

Finding the Fourth Proportional to 31,325.81, 46,990.88 and 12,606.00

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Solution

The fourth proportional to 31,325.81, 46,990.88 and 12,606.00 is: 18,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.81 : 46,990.88 = 12,606.00 : x
  2. Step 2: Convert to fraction form
    31,325.81/46,990.88 = 12,606.00/x
  3. Step 3: Cross multiply
    31,325.81x = 46,990.88 × 12,606.00
  4. Step 4: Simplify right side
    31,325.81x = 592,367,308.70
  5. Step 5: Solve for x
    x = 592,367,308.70/31,325.81
  6. Step 6: Final answer
    x = 18,909.88

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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.