Home / 28,444.80-39,247.40-17,111.28

Finding the Fourth Proportional to 28,444.80, 39,247.40 and 17,111.28

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Solution

The fourth proportional to 28,444.80, 39,247.40 and 17,111.28 is: 23,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.80 : 39,247.40 = 17,111.28 : x
  2. Step 2: Convert to fraction form
    28,444.80/39,247.40 = 17,111.28/x
  3. Step 3: Cross multiply
    28,444.80x = 39,247.40 × 17,111.28
  4. Step 4: Simplify right side
    28,444.80x = 671,573,250.67
  5. Step 5: Solve for x
    x = 671,573,250.67/28,444.80
  6. Step 6: Final answer
    x = 23,609.70

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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.