Home / 35,490.98-48,977.45-20,384.62

Finding the Fourth Proportional to 35,490.98, 48,977.45 and 20,384.62

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Solution

The fourth proportional to 35,490.98, 48,977.45 and 20,384.62 is: 28,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.98 : 48,977.45 = 20,384.62 : x
  2. Step 2: Convert to fraction form
    35,490.98/48,977.45 = 20,384.62/x
  3. Step 3: Cross multiply
    35,490.98x = 48,977.45 × 20,384.62
  4. Step 4: Simplify right side
    35,490.98x = 998,386,706.82
  5. Step 5: Solve for x
    x = 998,386,706.82/35,490.98
  6. Step 6: Final answer
    x = 28,130.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.