Home / 37,990.32-52,424.02-20,994.40

Finding the Fourth Proportional to 37,990.32, 52,424.02 and 20,994.40

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Solution

The fourth proportional to 37,990.32, 52,424.02 and 20,994.40 is: 28,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,990.32 : 52,424.02 = 20,994.40 : x
  2. Step 2: Convert to fraction form
    37,990.32/52,424.02 = 20,994.40/x
  3. Step 3: Cross multiply
    37,990.32x = 52,424.02 × 20,994.40
  4. Step 4: Simplify right side
    37,990.32x = 1,100,610,730.77
  5. Step 5: Solve for x
    x = 1,100,610,730.77/37,990.32
  6. Step 6: Final answer
    x = 28,970.82

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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.