Home / 42,032.64-63,088.32-21,270.72

Finding the Fourth Proportional to 42,032.64, 63,088.32 and 21,270.72

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Solution

The fourth proportional to 42,032.64, 63,088.32 and 21,270.72 is: 31,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,032.64 : 63,088.32 = 21,270.72 : x
  2. Step 2: Convert to fraction form
    42,032.64/63,088.32 = 21,270.72/x
  3. Step 3: Cross multiply
    42,032.64x = 63,088.32 × 21,270.72
  4. Step 4: Simplify right side
    42,032.64x = 1,341,933,989.99
  5. Step 5: Solve for x
    x = 1,341,933,989.99/42,032.64
  6. Step 6: Final answer
    x = 31,926.00

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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.