Home / 30,752.38-42,437.28-19,427.91

Finding the Fourth Proportional to 30,752.38, 42,437.28 and 19,427.91

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Solution

The fourth proportional to 30,752.38, 42,437.28 and 19,427.91 is: 26,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,752.38 : 42,437.28 = 19,427.91 : x
  2. Step 2: Convert to fraction form
    30,752.38/42,437.28 = 19,427.91/x
  3. Step 3: Cross multiply
    30,752.38x = 42,437.28 × 19,427.91
  4. Step 4: Simplify right side
    30,752.38x = 824,467,656.48
  5. Step 5: Solve for x
    x = 824,467,656.48/30,752.38
  6. Step 6: Final answer
    x = 26,809.88

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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.