Home / 18,688.95-28,033.53-5,541.42

Finding the Fourth Proportional to 18,688.95, 28,033.53 and 5,541.42

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Solution

The fourth proportional to 18,688.95, 28,033.53 and 5,541.42 is: 8,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.95 : 28,033.53 = 5,541.42 : x
  2. Step 2: Convert to fraction form
    18,688.95/28,033.53 = 5,541.42/x
  3. Step 3: Cross multiply
    18,688.95x = 28,033.53 × 5,541.42
  4. Step 4: Simplify right side
    18,688.95x = 155,345,563.81
  5. Step 5: Solve for x
    x = 155,345,563.81/18,688.95
  6. Step 6: Final answer
    x = 8,312.16

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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.