Home / 28,140.36-39,011.28-26,642.28

Finding the Fourth Proportional to 28,140.36, 39,011.28 and 26,642.28

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Solution

The fourth proportional to 28,140.36, 39,011.28 and 26,642.28 is: 36,934.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.36 : 39,011.28 = 26,642.28 : x
  2. Step 2: Convert to fraction form
    28,140.36/39,011.28 = 26,642.28/x
  3. Step 3: Cross multiply
    28,140.36x = 39,011.28 × 26,642.28
  4. Step 4: Simplify right side
    28,140.36x = 1,039,349,444.92
  5. Step 5: Solve for x
    x = 1,039,349,444.92/28,140.36
  6. Step 6: Final answer
    x = 36,934.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.