Home / 31,572.51-43,558.89-20,248.12

Finding the Fourth Proportional to 31,572.51, 43,558.89 and 20,248.12

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Solution

The fourth proportional to 31,572.51, 43,558.89 and 20,248.12 is: 27,935.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572.51 : 43,558.89 = 20,248.12 : x
  2. Step 2: Convert to fraction form
    31,572.51/43,558.89 = 20,248.12/x
  3. Step 3: Cross multiply
    31,572.51x = 43,558.89 × 20,248.12
  4. Step 4: Simplify right side
    31,572.51x = 881,985,498.80
  5. Step 5: Solve for x
    x = 881,985,498.80/31,572.51
  6. Step 6: Final answer
    x = 27,935.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.