Home / 42,885.12-59,184.64-28,743.68

Finding the Fourth Proportional to 42,885.12, 59,184.64 and 28,743.68

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Solution

The fourth proportional to 42,885.12, 59,184.64 and 28,743.68 is: 39,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,885.12 : 59,184.64 = 28,743.68 : x
  2. Step 2: Convert to fraction form
    42,885.12/59,184.64 = 28,743.68/x
  3. Step 3: Cross multiply
    42,885.12x = 59,184.64 × 28,743.68
  4. Step 4: Simplify right side
    42,885.12x = 1,701,184,353.08
  5. Step 5: Solve for x
    x = 1,701,184,353.08/42,885.12
  6. Step 6: Final answer
    x = 39,668.41

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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.