Home / 42,041.02-63,061.30-18,021.78

Finding the Fourth Proportional to 42,041.02, 63,061.30 and 18,021.78

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Solution

The fourth proportional to 42,041.02, 63,061.30 and 18,021.78 is: 27,032.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,041.02 : 63,061.30 = 18,021.78 : x
  2. Step 2: Convert to fraction form
    42,041.02/63,061.30 = 18,021.78/x
  3. Step 3: Cross multiply
    42,041.02x = 63,061.30 × 18,021.78
  4. Step 4: Simplify right side
    42,041.02x = 1,136,476,875.11
  5. Step 5: Solve for x
    x = 1,136,476,875.11/42,041.02
  6. Step 6: Final answer
    x = 27,032.57

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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.