Home / 38,888.64-58,320.72-12,587.28

Finding the Fourth Proportional to 38,888.64, 58,320.72 and 12,587.28

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Solution

The fourth proportional to 38,888.64, 58,320.72 and 12,587.28 is: 18,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,888.64 : 58,320.72 = 12,587.28 : x
  2. Step 2: Convert to fraction form
    38,888.64/58,320.72 = 12,587.28/x
  3. Step 3: Cross multiply
    38,888.64x = 58,320.72 × 12,587.28
  4. Step 4: Simplify right side
    38,888.64x = 734,099,232.44
  5. Step 5: Solve for x
    x = 734,099,232.44/38,888.64
  6. Step 6: Final answer
    x = 18,876.96

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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.