Home / 42,178.79-63,266.61-10,589.06

Finding the Fourth Proportional to 42,178.79, 63,266.61 and 10,589.06

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Solution

The fourth proportional to 42,178.79, 63,266.61 and 10,589.06 is: 15,883.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,178.79 : 63,266.61 = 10,589.06 : x
  2. Step 2: Convert to fraction form
    42,178.79/63,266.61 = 10,589.06/x
  3. Step 3: Cross multiply
    42,178.79x = 63,266.61 × 10,589.06
  4. Step 4: Simplify right side
    42,178.79x = 669,933,929.29
  5. Step 5: Solve for x
    x = 669,933,929.29/42,178.79
  6. Step 6: Final answer
    x = 15,883.19

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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.