Home / 38,632.88-53,316.76-21,636.86

Finding the Fourth Proportional to 38,632.88, 53,316.76 and 21,636.86

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Solution

The fourth proportional to 38,632.88, 53,316.76 and 21,636.86 is: 29,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632.88 : 53,316.76 = 21,636.86 : x
  2. Step 2: Convert to fraction form
    38,632.88/53,316.76 = 21,636.86/x
  3. Step 3: Cross multiply
    38,632.88x = 53,316.76 × 21,636.86
  4. Step 4: Simplify right side
    38,632.88x = 1,153,607,271.77
  5. Step 5: Solve for x
    x = 1,153,607,271.77/38,632.88
  6. Step 6: Final answer
    x = 29,860.76

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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.