Home / 39,478.78-54,483.93-22,488.34

Finding the Fourth Proportional to 39,478.78, 54,483.93 and 22,488.34

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Solution

The fourth proportional to 39,478.78, 54,483.93 and 22,488.34 is: 31,035.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.78 : 54,483.93 = 22,488.34 : x
  2. Step 2: Convert to fraction form
    39,478.78/54,483.93 = 22,488.34/x
  3. Step 3: Cross multiply
    39,478.78x = 54,483.93 × 22,488.34
  4. Step 4: Simplify right side
    39,478.78x = 1,225,253,142.38
  5. Step 5: Solve for x
    x = 1,225,253,142.38/39,478.78
  6. Step 6: Final answer
    x = 31,035.74

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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.