Home / 29,328.08-40,472.80-15,899.29

Finding the Fourth Proportional to 29,328.08, 40,472.80 and 15,899.29

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Solution

The fourth proportional to 29,328.08, 40,472.80 and 15,899.29 is: 21,941.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,328.08 : 40,472.80 = 15,899.29 : x
  2. Step 2: Convert to fraction form
    29,328.08/40,472.80 = 15,899.29/x
  3. Step 3: Cross multiply
    29,328.08x = 40,472.80 × 15,899.29
  4. Step 4: Simplify right side
    29,328.08x = 643,488,643.38
  5. Step 5: Solve for x
    x = 643,488,643.38/29,328.08
  6. Step 6: Final answer
    x = 21,941.05

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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.