Home / 40,426.48-55,384.48-38,911.35

Finding the Fourth Proportional to 40,426.48, 55,384.48 and 38,911.35

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Solution

The fourth proportional to 40,426.48, 55,384.48 and 38,911.35 is: 53,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,426.48 : 55,384.48 = 38,911.35 : x
  2. Step 2: Convert to fraction form
    40,426.48/55,384.48 = 38,911.35/x
  3. Step 3: Cross multiply
    40,426.48x = 55,384.48 × 38,911.35
  4. Step 4: Simplify right side
    40,426.48x = 2,155,084,885.85
  5. Step 5: Solve for x
    x = 2,155,084,885.85/40,426.48
  6. Step 6: Final answer
    x = 53,308.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.