Home / 20,937.71-31,563.49-19,545.77

Finding the Fourth Proportional to 20,937.71, 31,563.49 and 19,545.77

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Solution

The fourth proportional to 20,937.71, 31,563.49 and 19,545.77 is: 29,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.71 : 31,563.49 = 19,545.77 : x
  2. Step 2: Convert to fraction form
    20,937.71/31,563.49 = 19,545.77/x
  3. Step 3: Cross multiply
    20,937.71x = 31,563.49 × 19,545.77
  4. Step 4: Simplify right side
    20,937.71x = 616,932,782.63
  5. Step 5: Solve for x
    x = 616,932,782.63/20,937.71
  6. Step 6: Final answer
    x = 29,465.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.