Home / 38,656.99-53,372.34-29,688.47

Finding the Fourth Proportional to 38,656.99, 53,372.34 and 29,688.47

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Solution

The fourth proportional to 38,656.99, 53,372.34 and 29,688.47 is: 40,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,656.99 : 53,372.34 = 29,688.47 : x
  2. Step 2: Convert to fraction form
    38,656.99/53,372.34 = 29,688.47/x
  3. Step 3: Cross multiply
    38,656.99x = 53,372.34 × 29,688.47
  4. Step 4: Simplify right side
    38,656.99x = 1,584,542,848.06
  5. Step 5: Solve for x
    x = 1,584,542,848.06/38,656.99
  6. Step 6: Final answer
    x = 40,989.82

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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.