Home / 21,039.99-31,573.65-19,350.53

Finding the Fourth Proportional to 21,039.99, 31,573.65 and 19,350.53

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Solution

The fourth proportional to 21,039.99, 31,573.65 and 19,350.53 is: 29,038.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.99 : 31,573.65 = 19,350.53 : x
  2. Step 2: Convert to fraction form
    21,039.99/31,573.65 = 19,350.53/x
  3. Step 3: Cross multiply
    21,039.99x = 31,573.65 × 19,350.53
  4. Step 4: Simplify right side
    21,039.99x = 610,966,785.79
  5. Step 5: Solve for x
    x = 610,966,785.79/21,039.99
  6. Step 6: Final answer
    x = 29,038.36

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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.