Home / 31,430.17-47,130.46-11,425.60

Finding the Fourth Proportional to 31,430.17, 47,130.46 and 11,425.60

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Solution

The fourth proportional to 31,430.17, 47,130.46 and 11,425.60 is: 17,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.17 : 47,130.46 = 11,425.60 : x
  2. Step 2: Convert to fraction form
    31,430.17/47,130.46 = 11,425.60/x
  3. Step 3: Cross multiply
    31,430.17x = 47,130.46 × 11,425.60
  4. Step 4: Simplify right side
    31,430.17x = 538,493,491.00
  5. Step 5: Solve for x
    x = 538,493,491.00/31,430.17
  6. Step 6: Final answer
    x = 17,133.01

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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.