Home / 28,513.60-39,344.04-16,574.20

Finding the Fourth Proportional to 28,513.60, 39,344.04 and 16,574.20

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Solution

The fourth proportional to 28,513.60, 39,344.04 and 16,574.20 is: 22,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.60 : 39,344.04 = 16,574.20 : x
  2. Step 2: Convert to fraction form
    28,513.60/39,344.04 = 16,574.20/x
  3. Step 3: Cross multiply
    28,513.60x = 39,344.04 × 16,574.20
  4. Step 4: Simplify right side
    28,513.60x = 652,095,987.77
  5. Step 5: Solve for x
    x = 652,095,987.77/28,513.60
  6. Step 6: Final answer
    x = 22,869.65

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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.