Home / 40,510.45-60,783.90-18,312.40

Finding the Fourth Proportional to 40,510.45, 60,783.90 and 18,312.40

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Solution

The fourth proportional to 40,510.45, 60,783.90 and 18,312.40 is: 27,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,510.45 : 60,783.90 = 18,312.40 : x
  2. Step 2: Convert to fraction form
    40,510.45/60,783.90 = 18,312.40/x
  3. Step 3: Cross multiply
    40,510.45x = 60,783.90 × 18,312.40
  4. Step 4: Simplify right side
    40,510.45x = 1,113,099,090.36
  5. Step 5: Solve for x
    x = 1,113,099,090.36/40,510.45
  6. Step 6: Final answer
    x = 27,476.84

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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.