Home / 29,299.59-40,433.51-15,870.80

Finding the Fourth Proportional to 29,299.59, 40,433.51 and 15,870.80

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Solution

The fourth proportional to 29,299.59, 40,433.51 and 15,870.80 is: 21,901.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.59 : 40,433.51 = 15,870.80 : x
  2. Step 2: Convert to fraction form
    29,299.59/40,433.51 = 15,870.80/x
  3. Step 3: Cross multiply
    29,299.59x = 40,433.51 × 15,870.80
  4. Step 4: Simplify right side
    29,299.59x = 641,712,291.27
  5. Step 5: Solve for x
    x = 641,712,291.27/29,299.59
  6. Step 6: Final answer
    x = 21,901.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.