Home / 38,616.75-53,284.95-21,621.74

Finding the Fourth Proportional to 38,616.75, 53,284.95 and 21,621.74

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Solution

The fourth proportional to 38,616.75, 53,284.95 and 21,621.74 is: 29,834.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,616.75 : 53,284.95 = 21,621.74 : x
  2. Step 2: Convert to fraction form
    38,616.75/53,284.95 = 21,621.74/x
  3. Step 3: Cross multiply
    38,616.75x = 53,284.95 × 21,621.74
  4. Step 4: Simplify right side
    38,616.75x = 1,152,113,068.39
  5. Step 5: Solve for x
    x = 1,152,113,068.39/38,616.75
  6. Step 6: Final answer
    x = 29,834.54

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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.