Home / 28,621.04-42,931.56-8,900.84

Finding the Fourth Proportional to 28,621.04, 42,931.56 and 8,900.84

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Solution

The fourth proportional to 28,621.04, 42,931.56 and 8,900.84 is: 13,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.04 : 42,931.56 = 8,900.84 : x
  2. Step 2: Convert to fraction form
    28,621.04/42,931.56 = 8,900.84/x
  3. Step 3: Cross multiply
    28,621.04x = 42,931.56 × 8,900.84
  4. Step 4: Simplify right side
    28,621.04x = 382,126,946.51
  5. Step 5: Solve for x
    x = 382,126,946.51/28,621.04
  6. Step 6: Final answer
    x = 13,351.26

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Similar ratio
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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.