Home / 21,237.99-31,865.76-10,702.38

Finding the Fourth Proportional to 21,237.99, 31,865.76 and 10,702.38

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Solution

The fourth proportional to 21,237.99, 31,865.76 and 10,702.38 is: 16,057.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.99 : 31,865.76 = 10,702.38 : x
  2. Step 2: Convert to fraction form
    21,237.99/31,865.76 = 10,702.38/x
  3. Step 3: Cross multiply
    21,237.99x = 31,865.76 × 10,702.38
  4. Step 4: Simplify right side
    21,237.99x = 341,039,472.51
  5. Step 5: Solve for x
    x = 341,039,472.51/21,237.99
  6. Step 6: Final answer
    x = 16,057.99

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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.