Home / 31,583.64-47,342.64-12,876.72

Finding the Fourth Proportional to 31,583.64, 47,342.64 and 12,876.72

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Solution

The fourth proportional to 31,583.64, 47,342.64 and 12,876.72 is: 19,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,583.64 : 47,342.64 = 12,876.72 : x
  2. Step 2: Convert to fraction form
    31,583.64/47,342.64 = 12,876.72/x
  3. Step 3: Cross multiply
    31,583.64x = 47,342.64 × 12,876.72
  4. Step 4: Simplify right side
    31,583.64x = 609,617,919.34
  5. Step 5: Solve for x
    x = 609,617,919.34/31,583.64
  6. Step 6: Final answer
    x = 19,301.70

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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.