Home / 19,665.64-29,502.77-14,455.72

Finding the Fourth Proportional to 19,665.64, 29,502.77 and 14,455.72

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Solution

The fourth proportional to 19,665.64, 29,502.77 and 14,455.72 is: 21,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.64 : 29,502.77 = 14,455.72 : x
  2. Step 2: Convert to fraction form
    19,665.64/29,502.77 = 14,455.72/x
  3. Step 3: Cross multiply
    19,665.64x = 29,502.77 × 14,455.72
  4. Step 4: Simplify right side
    19,665.64x = 426,483,782.34
  5. Step 5: Solve for x
    x = 426,483,782.34/19,665.64
  6. Step 6: Final answer
    x = 21,686.75

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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.