Home / 38,128.07-52,616.74-21,134.87

Finding the Fourth Proportional to 38,128.07, 52,616.74 and 21,134.87

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Solution

The fourth proportional to 38,128.07, 52,616.74 and 21,134.87 is: 29,166.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128.07 : 52,616.74 = 21,134.87 : x
  2. Step 2: Convert to fraction form
    38,128.07/52,616.74 = 21,134.87/x
  3. Step 3: Cross multiply
    38,128.07x = 52,616.74 × 21,134.87
  4. Step 4: Simplify right side
    38,128.07x = 1,112,048,176.71
  5. Step 5: Solve for x
    x = 1,112,048,176.71/38,128.07
  6. Step 6: Final answer
    x = 29,166.13

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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.