Home / 42,018.95-63,029.14-15,709.34

Finding the Fourth Proportional to 42,018.95, 63,029.14 and 15,709.34

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Solution

The fourth proportional to 42,018.95, 63,029.14 and 15,709.34 is: 23,564.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,018.95 : 63,029.14 = 15,709.34 : x
  2. Step 2: Convert to fraction form
    42,018.95/63,029.14 = 15,709.34/x
  3. Step 3: Cross multiply
    42,018.95x = 63,029.14 × 15,709.34
  4. Step 4: Simplify right side
    42,018.95x = 990,146,308.47
  5. Step 5: Solve for x
    x = 990,146,308.47/42,018.95
  6. Step 6: Final answer
    x = 23,564.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.