Home / 38,780.52-53,518.28-22,878.60

Finding the Fourth Proportional to 38,780.52, 53,518.28 and 22,878.60

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Solution

The fourth proportional to 38,780.52, 53,518.28 and 22,878.60 is: 31,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.52 : 53,518.28 = 22,878.60 : x
  2. Step 2: Convert to fraction form
    38,780.52/53,518.28 = 22,878.60/x
  3. Step 3: Cross multiply
    38,780.52x = 53,518.28 × 22,878.60
  4. Step 4: Simplify right side
    38,780.52x = 1,224,423,320.81
  5. Step 5: Solve for x
    x = 1,224,423,320.81/38,780.52
  6. Step 6: Final answer
    x = 31,573.15

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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.