Home / 28,449.49-42,678.85-10,681.55

Finding the Fourth Proportional to 28,449.49, 42,678.85 and 10,681.55

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Solution

The fourth proportional to 28,449.49, 42,678.85 and 10,681.55 is: 16,024.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.49 : 42,678.85 = 10,681.55 : x
  2. Step 2: Convert to fraction form
    28,449.49/42,678.85 = 10,681.55/x
  3. Step 3: Cross multiply
    28,449.49x = 42,678.85 × 10,681.55
  4. Step 4: Simplify right side
    28,449.49x = 455,876,090.16
  5. Step 5: Solve for x
    x = 455,876,090.16/28,449.49
  6. Step 6: Final answer
    x = 16,024.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.