Home / 31,807.49-47,637.40-30,700.35

Finding the Fourth Proportional to 31,807.49, 47,637.40 and 30,700.35

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Solution

The fourth proportional to 31,807.49, 47,637.40 and 30,700.35 is: 45,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,807.49 : 47,637.40 = 30,700.35 : x
  2. Step 2: Convert to fraction form
    31,807.49/47,637.40 = 30,700.35/x
  3. Step 3: Cross multiply
    31,807.49x = 47,637.40 × 30,700.35
  4. Step 4: Simplify right side
    31,807.49x = 1,462,484,699.59
  5. Step 5: Solve for x
    x = 1,462,484,699.59/31,807.49
  6. Step 6: Final answer
    x = 45,979.26

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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.