Home / 30,638.76-42,285.43-17,210.01

Finding the Fourth Proportional to 30,638.76, 42,285.43 and 17,210.01

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Solution

The fourth proportional to 30,638.76, 42,285.43 and 17,210.01 is: 23,752.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638.76 : 42,285.43 = 17,210.01 : x
  2. Step 2: Convert to fraction form
    30,638.76/42,285.43 = 17,210.01/x
  3. Step 3: Cross multiply
    30,638.76x = 42,285.43 × 17,210.01
  4. Step 4: Simplify right side
    30,638.76x = 727,732,703.43
  5. Step 5: Solve for x
    x = 727,732,703.43/30,638.76
  6. Step 6: Final answer
    x = 23,752.03

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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.