Home / 30,521.01-42,117.12-17,090.00

Finding the Fourth Proportional to 30,521.01, 42,117.12 and 17,090.00

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Solution

The fourth proportional to 30,521.01, 42,117.12 and 17,090.00 is: 23,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.01 : 42,117.12 = 17,090.00 : x
  2. Step 2: Convert to fraction form
    30,521.01/42,117.12 = 17,090.00/x
  3. Step 3: Cross multiply
    30,521.01x = 42,117.12 × 17,090.00
  4. Step 4: Simplify right side
    30,521.01x = 719,781,370.21
  5. Step 5: Solve for x
    x = 719,781,370.21/30,521.01
  6. Step 6: Final answer
    x = 23,583.14

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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.