Home / 42,858.92-64,298.64-17,885.07

Finding the Fourth Proportional to 42,858.92, 64,298.64 and 17,885.07

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Solution

The fourth proportional to 42,858.92, 64,298.64 and 17,885.07 is: 26,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,858.92 : 64,298.64 = 17,885.07 : x
  2. Step 2: Convert to fraction form
    42,858.92/64,298.64 = 17,885.07/x
  3. Step 3: Cross multiply
    42,858.92x = 64,298.64 × 17,885.07
  4. Step 4: Simplify right side
    42,858.92x = 1,149,985,587.88
  5. Step 5: Solve for x
    x = 1,149,985,587.88/42,858.92
  6. Step 6: Final answer
    x = 26,831.89

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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.