Home / 38,685.76-53,386.56-22,775.20

Finding the Fourth Proportional to 38,685.76, 53,386.56 and 22,775.20

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Solution

The fourth proportional to 38,685.76, 53,386.56 and 22,775.20 is: 31,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,685.76 : 53,386.56 = 22,775.20 : x
  2. Step 2: Convert to fraction form
    38,685.76/53,386.56 = 22,775.20/x
  3. Step 3: Cross multiply
    38,685.76x = 53,386.56 × 22,775.20
  4. Step 4: Simplify right side
    38,685.76x = 1,215,889,581.31
  5. Step 5: Solve for x
    x = 1,215,889,581.31/38,685.76
  6. Step 6: Final answer
    x = 31,429.90

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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.