Home / 38,430.78-57,264.13-34,238.58

Finding the Fourth Proportional to 38,430.78, 57,264.13 and 34,238.58

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Solution

The fourth proportional to 38,430.78, 57,264.13 and 34,238.58 is: 51,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430.78 : 57,264.13 = 34,238.58 : x
  2. Step 2: Convert to fraction form
    38,430.78/57,264.13 = 34,238.58/x
  3. Step 3: Cross multiply
    38,430.78x = 57,264.13 × 34,238.58
  4. Step 4: Simplify right side
    38,430.78x = 1,960,642,496.14
  5. Step 5: Solve for x
    x = 1,960,642,496.14/38,430.78
  6. Step 6: Final answer
    x = 51,017.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.