Home / 42,621.02-63,929.21-13,038.85

Finding the Fourth Proportional to 42,621.02, 63,929.21 and 13,038.85

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Solution

The fourth proportional to 42,621.02, 63,929.21 and 13,038.85 is: 19,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,621.02 : 63,929.21 = 13,038.85 : x
  2. Step 2: Convert to fraction form
    42,621.02/63,929.21 = 13,038.85/x
  3. Step 3: Cross multiply
    42,621.02x = 63,929.21 × 13,038.85
  4. Step 4: Simplify right side
    42,621.02x = 833,563,314.61
  5. Step 5: Solve for x
    x = 833,563,314.61/42,621.02
  6. Step 6: Final answer
    x = 19,557.57

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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.