Home / 38,430.09-57,643.06-11,776.16

Finding the Fourth Proportional to 38,430.09, 57,643.06 and 11,776.16

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Solution

The fourth proportional to 38,430.09, 57,643.06 and 11,776.16 is: 17,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430.09 : 57,643.06 = 11,776.16 : x
  2. Step 2: Convert to fraction form
    38,430.09/57,643.06 = 11,776.16/x
  3. Step 3: Cross multiply
    38,430.09x = 57,643.06 × 11,776.16
  4. Step 4: Simplify right side
    38,430.09x = 678,814,010.48
  5. Step 5: Solve for x
    x = 678,814,010.48/38,430.09
  6. Step 6: Final answer
    x = 17,663.60

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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.