Home / 28,938.55-39,943.00-17,009.88

Finding the Fourth Proportional to 28,938.55, 39,943.00 and 17,009.88

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Solution

The fourth proportional to 28,938.55, 39,943.00 and 17,009.88 is: 23,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.55 : 39,943.00 = 17,009.88 : x
  2. Step 2: Convert to fraction form
    28,938.55/39,943.00 = 17,009.88/x
  3. Step 3: Cross multiply
    28,938.55x = 39,943.00 × 17,009.88
  4. Step 4: Simplify right side
    28,938.55x = 679,425,685.16
  5. Step 5: Solve for x
    x = 679,425,685.16/28,938.55
  6. Step 6: Final answer
    x = 23,478.22

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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.