Home / 30,485.41-42,071.50-17,055.86

Finding the Fourth Proportional to 30,485.41, 42,071.50 and 17,055.86

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Solution

The fourth proportional to 30,485.41, 42,071.50 and 17,055.86 is: 23,538.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.41 : 42,071.50 = 17,055.86 : x
  2. Step 2: Convert to fraction form
    30,485.41/42,071.50 = 17,055.86/x
  3. Step 3: Cross multiply
    30,485.41x = 42,071.50 × 17,055.86
  4. Step 4: Simplify right side
    30,485.41x = 717,565,613.99
  5. Step 5: Solve for x
    x = 717,565,613.99/30,485.41
  6. Step 6: Final answer
    x = 23,538.00

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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.