Home / 40,426.24-60,639.36-12,345.16

Finding the Fourth Proportional to 40,426.24, 60,639.36 and 12,345.16

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Solution

The fourth proportional to 40,426.24, 60,639.36 and 12,345.16 is: 18,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,426.24 : 60,639.36 = 12,345.16 : x
  2. Step 2: Convert to fraction form
    40,426.24/60,639.36 = 12,345.16/x
  3. Step 3: Cross multiply
    40,426.24x = 60,639.36 × 12,345.16
  4. Step 4: Simplify right side
    40,426.24x = 748,602,601.50
  5. Step 5: Solve for x
    x = 748,602,601.50/40,426.24
  6. Step 6: Final answer
    x = 18,517.74

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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.