Home / 42,831.48-64,246.56-11,666.64

Finding the Fourth Proportional to 42,831.48, 64,246.56 and 11,666.64

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Solution

The fourth proportional to 42,831.48, 64,246.56 and 11,666.64 is: 17,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.48 : 64,246.56 = 11,666.64 : x
  2. Step 2: Convert to fraction form
    42,831.48/64,246.56 = 11,666.64/x
  3. Step 3: Cross multiply
    42,831.48x = 64,246.56 × 11,666.64
  4. Step 4: Simplify right side
    42,831.48x = 749,541,486.76
  5. Step 5: Solve for x
    x = 749,541,486.76/42,831.48
  6. Step 6: Final answer
    x = 17,499.78

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1.5x scale

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.