Home / 30,275.64-45,335.70-18,553.32

Finding the Fourth Proportional to 30,275.64, 45,335.70 and 18,553.32

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Solution

The fourth proportional to 30,275.64, 45,335.70 and 18,553.32 is: 27,782.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.64 : 45,335.70 = 18,553.32 : x
  2. Step 2: Convert to fraction form
    30,275.64/45,335.70 = 18,553.32/x
  3. Step 3: Cross multiply
    30,275.64x = 45,335.70 × 18,553.32
  4. Step 4: Simplify right side
    30,275.64x = 841,127,749.52
  5. Step 5: Solve for x
    x = 841,127,749.52/30,275.64
  6. Step 6: Final answer
    x = 27,782.33

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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.