Home / 31,519.02-47,285.81-10,457.49

Finding the Fourth Proportional to 31,519.02, 47,285.81 and 10,457.49

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Solution

The fourth proportional to 31,519.02, 47,285.81 and 10,457.49 is: 15,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,519.02 : 47,285.81 = 10,457.49 : x
  2. Step 2: Convert to fraction form
    31,519.02/47,285.81 = 10,457.49/x
  3. Step 3: Cross multiply
    31,519.02x = 47,285.81 × 10,457.49
  4. Step 4: Simplify right side
    31,519.02x = 494,490,832.93
  5. Step 5: Solve for x
    x = 494,490,832.93/31,519.02
  6. Step 6: Final answer
    x = 15,688.65

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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.