Home / 31,588.91-47,381.63-19,105.59

Finding the Fourth Proportional to 31,588.91, 47,381.63 and 19,105.59

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Solution

The fourth proportional to 31,588.91, 47,381.63 and 19,105.59 is: 28,657.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,588.91 : 47,381.63 = 19,105.59 : x
  2. Step 2: Convert to fraction form
    31,588.91/47,381.63 = 19,105.59/x
  3. Step 3: Cross multiply
    31,588.91x = 47,381.63 × 19,105.59
  4. Step 4: Simplify right side
    31,588.91x = 905,254,044.08
  5. Step 5: Solve for x
    x = 905,254,044.08/31,588.91
  6. Step 6: Final answer
    x = 28,657.34

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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.