Home / 31,363.51-43,301.93-19,439.53

Finding the Fourth Proportional to 31,363.51, 43,301.93 and 19,439.53

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Solution

The fourth proportional to 31,363.51, 43,301.93 and 19,439.53 is: 26,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.51 : 43,301.93 = 19,439.53 : x
  2. Step 2: Convert to fraction form
    31,363.51/43,301.93 = 19,439.53/x
  3. Step 3: Cross multiply
    31,363.51x = 43,301.93 × 19,439.53
  4. Step 4: Simplify right side
    31,363.51x = 841,769,070.10
  5. Step 5: Solve for x
    x = 841,769,070.10/31,363.51
  6. Step 6: Final answer
    x = 26,839.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.