Home / 38,465.08-53,079.76-21,697

Finding the Fourth Proportional to 38,465.08, 53,079.76 and 21,697

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Solution

The fourth proportional to 38,465.08, 53,079.76 and 21,697 is: 29,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,465.08 : 53,079.76 = 21,697 : x
  2. Step 2: Convert to fraction form
    38,465.08/53,079.76 = 21,697/x
  3. Step 3: Cross multiply
    38,465.08x = 53,079.76 × 21,697
  4. Step 4: Simplify right side
    38,465.08x = 1,151,671,552.72
  5. Step 5: Solve for x
    x = 1,151,671,552.72/38,465.08
  6. Step 6: Final answer
    x = 29,940.70

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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.