Home / 42,155.88-63,215.10-22,430.28

Finding the Fourth Proportional to 42,155.88, 63,215.10 and 22,430.28

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Solution

The fourth proportional to 42,155.88, 63,215.10 and 22,430.28 is: 33,635.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,155.88 : 63,215.10 = 22,430.28 : x
  2. Step 2: Convert to fraction form
    42,155.88/63,215.10 = 22,430.28/x
  3. Step 3: Cross multiply
    42,155.88x = 63,215.10 × 22,430.28
  4. Step 4: Simplify right side
    42,155.88x = 1,417,932,393.23
  5. Step 5: Solve for x
    x = 1,417,932,393.23/42,155.88
  6. Step 6: Final answer
    x = 33,635.46

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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.