Home / 31,445.51-47,160.32-18,798.89

Finding the Fourth Proportional to 31,445.51, 47,160.32 and 18,798.89

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Solution

The fourth proportional to 31,445.51, 47,160.32 and 18,798.89 is: 28,193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.51 : 47,160.32 = 18,798.89 : x
  2. Step 2: Convert to fraction form
    31,445.51/47,160.32 = 18,798.89/x
  3. Step 3: Cross multiply
    31,445.51x = 47,160.32 × 18,798.89
  4. Step 4: Simplify right side
    31,445.51x = 886,561,338.25
  5. Step 5: Solve for x
    x = 886,561,338.25/31,445.51
  6. Step 6: Final answer
    x = 28,193.58

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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.