Home / 26,345.81-39,510.63-13,859.06

Finding the Fourth Proportional to 26,345.81, 39,510.63 and 13,859.06

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Solution

The fourth proportional to 26,345.81, 39,510.63 and 13,859.06 is: 20,784.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,345.81 : 39,510.63 = 13,859.06 : x
  2. Step 2: Convert to fraction form
    26,345.81/39,510.63 = 13,859.06/x
  3. Step 3: Cross multiply
    26,345.81x = 39,510.63 × 13,859.06
  4. Step 4: Simplify right side
    26,345.81x = 547,579,994.25
  5. Step 5: Solve for x
    x = 547,579,994.25/26,345.81
  6. Step 6: Final answer
    x = 20,784.33

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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.