Home / 38,468.60-57,746.10-20,929.40

Finding the Fourth Proportional to 38,468.60, 57,746.10 and 20,929.40

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Solution

The fourth proportional to 38,468.60, 57,746.10 and 20,929.40 is: 31,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,468.60 : 57,746.10 = 20,929.40 : x
  2. Step 2: Convert to fraction form
    38,468.60/57,746.10 = 20,929.40/x
  3. Step 3: Cross multiply
    38,468.60x = 57,746.10 × 20,929.40
  4. Step 4: Simplify right side
    38,468.60x = 1,208,591,225.34
  5. Step 5: Solve for x
    x = 1,208,591,225.34/38,468.60
  6. Step 6: Final answer
    x = 31,417.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.