Home / 30,547.52-42,152.16-17,119.04

Finding the Fourth Proportional to 30,547.52, 42,152.16 and 17,119.04

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Solution

The fourth proportional to 30,547.52, 42,152.16 and 17,119.04 is: 23,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,547.52 : 42,152.16 = 17,119.04 : x
  2. Step 2: Convert to fraction form
    30,547.52/42,152.16 = 17,119.04/x
  3. Step 3: Cross multiply
    30,547.52x = 42,152.16 × 17,119.04
  4. Step 4: Simplify right side
    30,547.52x = 721,604,513.13
  5. Step 5: Solve for x
    x = 721,604,513.13/30,547.52
  6. Step 6: Final answer
    x = 23,622.36

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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.