Home / 28,897.99-39,868.23-21,362.41

Finding the Fourth Proportional to 28,897.99, 39,868.23 and 21,362.41

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Solution

The fourth proportional to 28,897.99, 39,868.23 and 21,362.41 is: 29,472.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.99 : 39,868.23 = 21,362.41 : x
  2. Step 2: Convert to fraction form
    28,897.99/39,868.23 = 21,362.41/x
  3. Step 3: Cross multiply
    28,897.99x = 39,868.23 × 21,362.41
  4. Step 4: Simplify right side
    28,897.99x = 851,681,605.18
  5. Step 5: Solve for x
    x = 851,681,605.18/28,897.99
  6. Step 6: Final answer
    x = 29,472.00

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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.