Home / 42,154.29-63,262.62-19,967.72

Finding the Fourth Proportional to 42,154.29, 63,262.62 and 19,967.72

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Solution

The fourth proportional to 42,154.29, 63,262.62 and 19,967.72 is: 29,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.29 : 63,262.62 = 19,967.72 : x
  2. Step 2: Convert to fraction form
    42,154.29/63,262.62 = 19,967.72/x
  3. Step 3: Cross multiply
    42,154.29x = 63,262.62 × 19,967.72
  4. Step 4: Simplify right side
    42,154.29x = 1,263,209,966.31
  5. Step 5: Solve for x
    x = 1,263,209,966.31/42,154.29
  6. Step 6: Final answer
    x = 29,966.34

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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.