Home / 31,937.95-47,904.81-13,213.09

Finding the Fourth Proportional to 31,937.95, 47,904.81 and 13,213.09

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Solution

The fourth proportional to 31,937.95, 47,904.81 and 13,213.09 is: 19,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,937.95 : 47,904.81 = 13,213.09 : x
  2. Step 2: Convert to fraction form
    31,937.95/47,904.81 = 13,213.09/x
  3. Step 3: Cross multiply
    31,937.95x = 47,904.81 × 13,213.09
  4. Step 4: Simplify right side
    31,937.95x = 632,970,565.96
  5. Step 5: Solve for x
    x = 632,970,565.96/31,937.95
  6. Step 6: Final answer
    x = 19,818.76

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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.