Home / 30,501.39-42,082.32-17,070.51

Finding the Fourth Proportional to 30,501.39, 42,082.32 and 17,070.51

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Solution

The fourth proportional to 30,501.39, 42,082.32 and 17,070.51 is: 23,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,501.39 : 42,082.32 = 17,070.51 : x
  2. Step 2: Convert to fraction form
    30,501.39/42,082.32 = 17,070.51/x
  3. Step 3: Cross multiply
    30,501.39x = 42,082.32 × 17,070.51
  4. Step 4: Simplify right side
    30,501.39x = 718,366,664.38
  5. Step 5: Solve for x
    x = 718,366,664.38/30,501.39
  6. Step 6: Final answer
    x = 23,551.93

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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.