Home / 21,588.13-32,385.89-9,902.35

Finding the Fourth Proportional to 21,588.13, 32,385.89 and 9,902.35

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Solution

The fourth proportional to 21,588.13, 32,385.89 and 9,902.35 is: 14,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588.13 : 32,385.89 = 9,902.35 : x
  2. Step 2: Convert to fraction form
    21,588.13/32,385.89 = 9,902.35/x
  3. Step 3: Cross multiply
    21,588.13x = 32,385.89 × 9,902.35
  4. Step 4: Simplify right side
    21,588.13x = 320,696,417.84
  5. Step 5: Solve for x
    x = 320,696,417.84/21,588.13
  6. Step 6: Final answer
    x = 14,855.22

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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.