Home / 30,637.56-42,278.88-17,210.28

Finding the Fourth Proportional to 30,637.56, 42,278.88 and 17,210.28

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Solution

The fourth proportional to 30,637.56, 42,278.88 and 17,210.28 is: 23,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,637.56 : 42,278.88 = 17,210.28 : x
  2. Step 2: Convert to fraction form
    30,637.56/42,278.88 = 17,210.28/x
  3. Step 3: Cross multiply
    30,637.56x = 42,278.88 × 17,210.28
  4. Step 4: Simplify right side
    30,637.56x = 727,631,362.89
  5. Step 5: Solve for x
    x = 727,631,362.89/30,637.56
  6. Step 6: Final answer
    x = 23,749.65

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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.