Home / 28,259.94-38,998.98-17,655.72

Finding the Fourth Proportional to 28,259.94, 38,998.98 and 17,655.72

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Solution

The fourth proportional to 28,259.94, 38,998.98 and 17,655.72 is: 24,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.94 : 38,998.98 = 17,655.72 : x
  2. Step 2: Convert to fraction form
    28,259.94/38,998.98 = 17,655.72/x
  3. Step 3: Cross multiply
    28,259.94x = 38,998.98 × 17,655.72
  4. Step 4: Simplify right side
    28,259.94x = 688,555,071.17
  5. Step 5: Solve for x
    x = 688,555,071.17/28,259.94
  6. Step 6: Final answer
    x = 24,365.06

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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.