Home / 28,962.32-39,968.52-16,389.68

Finding the Fourth Proportional to 28,962.32, 39,968.52 and 16,389.68

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Solution

The fourth proportional to 28,962.32, 39,968.52 and 16,389.68 is: 22,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.32 : 39,968.52 = 16,389.68 : x
  2. Step 2: Convert to fraction form
    28,962.32/39,968.52 = 16,389.68/x
  3. Step 3: Cross multiply
    28,962.32x = 39,968.52 × 16,389.68
  4. Step 4: Simplify right side
    28,962.32x = 655,071,252.87
  5. Step 5: Solve for x
    x = 655,071,252.87/28,962.32
  6. Step 6: Final answer
    x = 22,618.05

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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.