Home / 30,489.03-42,070.80-17,058.81

Finding the Fourth Proportional to 30,489.03, 42,070.80 and 17,058.81

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Solution

The fourth proportional to 30,489.03, 42,070.80 and 17,058.81 is: 23,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.03 : 42,070.80 = 17,058.81 : x
  2. Step 2: Convert to fraction form
    30,489.03/42,070.80 = 17,058.81/x
  3. Step 3: Cross multiply
    30,489.03x = 42,070.80 × 17,058.81
  4. Step 4: Simplify right side
    30,489.03x = 717,677,783.75
  5. Step 5: Solve for x
    x = 717,677,783.75/30,489.03
  6. Step 6: Final answer
    x = 23,538.89

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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.