Home / 31,536.25-47,303.34-12,810.75

Finding the Fourth Proportional to 31,536.25, 47,303.34 and 12,810.75

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Solution

The fourth proportional to 31,536.25, 47,303.34 and 12,810.75 is: 19,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536.25 : 47,303.34 = 12,810.75 : x
  2. Step 2: Convert to fraction form
    31,536.25/47,303.34 = 12,810.75/x
  3. Step 3: Cross multiply
    31,536.25x = 47,303.34 × 12,810.75
  4. Step 4: Simplify right side
    31,536.25x = 605,991,026.39
  5. Step 5: Solve for x
    x = 605,991,026.39/31,536.25
  6. Step 6: Final answer
    x = 19,215.70

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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.