Home / 28,445.80-39,248.78-17,112.28

Finding the Fourth Proportional to 28,445.80, 39,248.78 and 17,112.28

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Solution

The fourth proportional to 28,445.80, 39,248.78 and 17,112.28 is: 23,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.80 : 39,248.78 = 17,112.28 : x
  2. Step 2: Convert to fraction form
    28,445.80/39,248.78 = 17,112.28/x
  3. Step 3: Cross multiply
    28,445.80x = 39,248.78 × 17,112.28
  4. Step 4: Simplify right side
    28,445.80x = 671,636,113.02
  5. Step 5: Solve for x
    x = 671,636,113.02/28,445.80
  6. Step 6: Final answer
    x = 23,611.08

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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.