Home / 20,259.84-27,925.11-13,543.01

Finding the Fourth Proportional to 20,259.84, 27,925.11 and 13,543.01

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Solution

The fourth proportional to 20,259.84, 27,925.11 and 13,543.01 is: 18,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.84 : 27,925.11 = 13,543.01 : x
  2. Step 2: Convert to fraction form
    20,259.84/27,925.11 = 13,543.01/x
  3. Step 3: Cross multiply
    20,259.84x = 27,925.11 × 13,543.01
  4. Step 4: Simplify right side
    20,259.84x = 378,190,113.79
  5. Step 5: Solve for x
    x = 378,190,113.79/20,259.84
  6. Step 6: Final answer
    x = 18,666.98

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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.