Home / 38,889.38-58,319.39-12,587.06

Finding the Fourth Proportional to 38,889.38, 58,319.39 and 12,587.06

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Solution

The fourth proportional to 38,889.38, 58,319.39 and 12,587.06 is: 18,875.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,889.38 : 58,319.39 = 12,587.06 : x
  2. Step 2: Convert to fraction form
    38,889.38/58,319.39 = 12,587.06/x
  3. Step 3: Cross multiply
    38,889.38x = 58,319.39 × 12,587.06
  4. Step 4: Simplify right side
    38,889.38x = 734,069,838.36
  5. Step 5: Solve for x
    x = 734,069,838.36/38,889.38
  6. Step 6: Final answer
    x = 18,875.84

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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.