Home / 30,430.12-42,005.29-27,237.79

Finding the Fourth Proportional to 30,430.12, 42,005.29 and 27,237.79

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Solution

The fourth proportional to 30,430.12, 42,005.29 and 27,237.79 is: 37,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.12 : 42,005.29 = 27,237.79 : x
  2. Step 2: Convert to fraction form
    30,430.12/42,005.29 = 27,237.79/x
  3. Step 3: Cross multiply
    30,430.12x = 42,005.29 × 27,237.79
  4. Step 4: Simplify right side
    30,430.12x = 1,144,131,162.90
  5. Step 5: Solve for x
    x = 1,144,131,162.90/30,430.12
  6. Step 6: Final answer
    x = 37,598.64

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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.