Home / 31,535.63-47,309.93-12,815.63

Finding the Fourth Proportional to 31,535.63, 47,309.93 and 12,815.63

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Solution

The fourth proportional to 31,535.63, 47,309.93 and 12,815.63 is: 19,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,535.63 : 47,309.93 = 12,815.63 : x
  2. Step 2: Convert to fraction form
    31,535.63/47,309.93 = 12,815.63/x
  3. Step 3: Cross multiply
    31,535.63x = 47,309.93 × 12,815.63
  4. Step 4: Simplify right side
    31,535.63x = 606,306,353.70
  5. Step 5: Solve for x
    x = 606,306,353.70/31,535.63
  6. Step 6: Final answer
    x = 19,226.08

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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.