Home / 28,748.10-39,672.32-16,809.06

Finding the Fourth Proportional to 28,748.10, 39,672.32 and 16,809.06

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Solution

The fourth proportional to 28,748.10, 39,672.32 and 16,809.06 is: 23,196.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.10 : 39,672.32 = 16,809.06 : x
  2. Step 2: Convert to fraction form
    28,748.10/39,672.32 = 16,809.06/x
  3. Step 3: Cross multiply
    28,748.10x = 39,672.32 × 16,809.06
  4. Step 4: Simplify right side
    28,748.10x = 666,854,407.22
  5. Step 5: Solve for x
    x = 666,854,407.22/28,748.10
  6. Step 6: Final answer
    x = 23,196.47

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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.