Home / 31,547.61-47,308.46-11,816.01

Finding the Fourth Proportional to 31,547.61, 47,308.46 and 11,816.01

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Solution

The fourth proportional to 31,547.61, 47,308.46 and 11,816.01 is: 17,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547.61 : 47,308.46 = 11,816.01 : x
  2. Step 2: Convert to fraction form
    31,547.61/47,308.46 = 11,816.01/x
  3. Step 3: Cross multiply
    31,547.61x = 47,308.46 × 11,816.01
  4. Step 4: Simplify right side
    31,547.61x = 558,997,177.36
  5. Step 5: Solve for x
    x = 558,997,177.36/31,547.61
  6. Step 6: Final answer
    x = 17,719.16

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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.