Home / 48,417.30-72,611.55-18,818.10

Finding the Fourth Proportional to 48,417.30, 72,611.55 and 18,818.10

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Solution

The fourth proportional to 48,417.30, 72,611.55 and 18,818.10 is: 28,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,417.30 : 72,611.55 = 18,818.10 : x
  2. Step 2: Convert to fraction form
    48,417.30/72,611.55 = 18,818.10/x
  3. Step 3: Cross multiply
    48,417.30x = 72,611.55 × 18,818.10
  4. Step 4: Simplify right side
    48,417.30x = 1,366,411,409.06
  5. Step 5: Solve for x
    x = 1,366,411,409.06/48,417.30
  6. Step 6: Final answer
    x = 28,221.55

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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.