Home / 30,825.32-42,536.48-18,887.01

Finding the Fourth Proportional to 30,825.32, 42,536.48 and 18,887.01

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Solution

The fourth proportional to 30,825.32, 42,536.48 and 18,887.01 is: 26,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,825.32 : 42,536.48 = 18,887.01 : x
  2. Step 2: Convert to fraction form
    30,825.32/42,536.48 = 18,887.01/x
  3. Step 3: Cross multiply
    30,825.32x = 42,536.48 × 18,887.01
  4. Step 4: Simplify right side
    30,825.32x = 803,386,828.69
  5. Step 5: Solve for x
    x = 803,386,828.69/30,825.32
  6. Step 6: Final answer
    x = 26,062.57

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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.