Home / 30,598.60-42,215.70-19,427.08

Finding the Fourth Proportional to 30,598.60, 42,215.70 and 19,427.08

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Solution

The fourth proportional to 30,598.60, 42,215.70 and 19,427.08 is: 26,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,598.60 : 42,215.70 = 19,427.08 : x
  2. Step 2: Convert to fraction form
    30,598.60/42,215.70 = 19,427.08/x
  3. Step 3: Cross multiply
    30,598.60x = 42,215.70 × 19,427.08
  4. Step 4: Simplify right side
    30,598.60x = 820,127,781.16
  5. Step 5: Solve for x
    x = 820,127,781.16/30,598.60
  6. Step 6: Final answer
    x = 26,802.79

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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.