Home / 39,018.18-53,844.92-21,113.50

Finding the Fourth Proportional to 39,018.18, 53,844.92 and 21,113.50

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Solution

The fourth proportional to 39,018.18, 53,844.92 and 21,113.50 is: 29,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,018.18 : 53,844.92 = 21,113.50 : x
  2. Step 2: Convert to fraction form
    39,018.18/53,844.92 = 21,113.50/x
  3. Step 3: Cross multiply
    39,018.18x = 53,844.92 × 21,113.50
  4. Step 4: Simplify right side
    39,018.18x = 1,136,854,718.42
  5. Step 5: Solve for x
    x = 1,136,854,718.42/39,018.18
  6. Step 6: Final answer
    x = 29,136.54

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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.