Home / 31,595.06-47,392.45-12,870.92

Finding the Fourth Proportional to 31,595.06, 47,392.45 and 12,870.92

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Solution

The fourth proportional to 31,595.06, 47,392.45 and 12,870.92 is: 19,306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,595.06 : 47,392.45 = 12,870.92 : x
  2. Step 2: Convert to fraction form
    31,595.06/47,392.45 = 12,870.92/x
  3. Step 3: Cross multiply
    31,595.06x = 47,392.45 × 12,870.92
  4. Step 4: Simplify right side
    31,595.06x = 609,984,163.41
  5. Step 5: Solve for x
    x = 609,984,163.41/31,595.06
  6. Step 6: Final answer
    x = 19,306.32

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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.