Home / 28,916.80-39,889.77-17,589.76

Finding the Fourth Proportional to 28,916.80, 39,889.77 and 17,589.76

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Solution

The fourth proportional to 28,916.80, 39,889.77 and 17,589.76 is: 24,264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.80 : 39,889.77 = 17,589.76 : x
  2. Step 2: Convert to fraction form
    28,916.80/39,889.77 = 17,589.76/x
  3. Step 3: Cross multiply
    28,916.80x = 39,889.77 × 17,589.76
  4. Step 4: Simplify right side
    28,916.80x = 701,651,315.07
  5. Step 5: Solve for x
    x = 701,651,315.07/28,916.80
  6. Step 6: Final answer
    x = 24,264.49

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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.