Home / 42,565.40-63,887.44-21,520.24

Finding the Fourth Proportional to 42,565.40, 63,887.44 and 21,520.24

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Solution

The fourth proportional to 42,565.40, 63,887.44 and 21,520.24 is: 32,300.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,565.40 : 63,887.44 = 21,520.24 : x
  2. Step 2: Convert to fraction form
    42,565.40/63,887.44 = 21,520.24/x
  3. Step 3: Cross multiply
    42,565.40x = 63,887.44 × 21,520.24
  4. Step 4: Simplify right side
    42,565.40x = 1,374,873,041.79
  5. Step 5: Solve for x
    x = 1,374,873,041.79/42,565.40
  6. Step 6: Final answer
    x = 32,300.25

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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.