Home / 31,678.01-43,715.40-17,531.63

Finding the Fourth Proportional to 31,678.01, 43,715.40 and 17,531.63

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Solution

The fourth proportional to 31,678.01, 43,715.40 and 17,531.63 is: 24,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.01 : 43,715.40 = 17,531.63 : x
  2. Step 2: Convert to fraction form
    31,678.01/43,715.40 = 17,531.63/x
  3. Step 3: Cross multiply
    31,678.01x = 43,715.40 × 17,531.63
  4. Step 4: Simplify right side
    31,678.01x = 766,402,218.10
  5. Step 5: Solve for x
    x = 766,402,218.10/31,678.01
  6. Step 6: Final answer
    x = 24,193.51

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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.