Home / 22,999.19-31,666.10-20,897.01

Finding the Fourth Proportional to 22,999.19, 31,666.10 and 20,897.01

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Solution

The fourth proportional to 22,999.19, 31,666.10 and 20,897.01 is: 28,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,999.19 : 31,666.10 = 20,897.01 : x
  2. Step 2: Convert to fraction form
    22,999.19/31,666.10 = 20,897.01/x
  3. Step 3: Cross multiply
    22,999.19x = 31,666.10 × 20,897.01
  4. Step 4: Simplify right side
    22,999.19x = 661,726,703.88
  5. Step 5: Solve for x
    x = 661,726,703.88/22,999.19
  6. Step 6: Final answer
    x = 28,771.75

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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.