Home / 42,668.64-64,010.40-14,591.52

Finding the Fourth Proportional to 42,668.64, 64,010.40 and 14,591.52

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Solution

The fourth proportional to 42,668.64, 64,010.40 and 14,591.52 is: 21,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,668.64 : 64,010.40 = 14,591.52 : x
  2. Step 2: Convert to fraction form
    42,668.64/64,010.40 = 14,591.52/x
  3. Step 3: Cross multiply
    42,668.64x = 64,010.40 × 14,591.52
  4. Step 4: Simplify right side
    42,668.64x = 934,009,031.81
  5. Step 5: Solve for x
    x = 934,009,031.81/42,668.64
  6. Step 6: Final answer
    x = 21,889.82

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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.