Home / 28,921.64-43,332.89-19,416.15

Finding the Fourth Proportional to 28,921.64, 43,332.89 and 19,416.15

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Solution

The fourth proportional to 28,921.64, 43,332.89 and 19,416.15 is: 29,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.64 : 43,332.89 = 19,416.15 : x
  2. Step 2: Convert to fraction form
    28,921.64/43,332.89 = 19,416.15/x
  3. Step 3: Cross multiply
    28,921.64x = 43,332.89 × 19,416.15
  4. Step 4: Simplify right side
    28,921.64x = 841,357,795.09
  5. Step 5: Solve for x
    x = 841,357,795.09/28,921.64
  6. Step 6: Final answer
    x = 29,090.95

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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.