Home / 31,512.01-47,205.75-18,995.08

Finding the Fourth Proportional to 31,512.01, 47,205.75 and 18,995.08

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Solution

The fourth proportional to 31,512.01, 47,205.75 and 18,995.08 is: 28,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.01 : 47,205.75 = 18,995.08 : x
  2. Step 2: Convert to fraction form
    31,512.01/47,205.75 = 18,995.08/x
  3. Step 3: Cross multiply
    31,512.01x = 47,205.75 × 18,995.08
  4. Step 4: Simplify right side
    31,512.01x = 896,676,997.71
  5. Step 5: Solve for x
    x = 896,676,997.71/31,512.01
  6. Step 6: Final answer
    x = 28,455.09

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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.