Home / 28,470.09-39,302.04-16,531.10

Finding the Fourth Proportional to 28,470.09, 39,302.04 and 16,531.10

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Solution

The fourth proportional to 28,470.09, 39,302.04 and 16,531.10 is: 22,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.09 : 39,302.04 = 16,531.10 : x
  2. Step 2: Convert to fraction form
    28,470.09/39,302.04 = 16,531.10/x
  3. Step 3: Cross multiply
    28,470.09x = 39,302.04 × 16,531.10
  4. Step 4: Simplify right side
    28,470.09x = 649,705,756.93
  5. Step 5: Solve for x
    x = 649,705,756.93/28,470.09
  6. Step 6: Final answer
    x = 22,820.64

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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.