Home / 28,077.08-38,746.66-15,501.80

Finding the Fourth Proportional to 28,077.08, 38,746.66 and 15,501.80

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Solution

The fourth proportional to 28,077.08, 38,746.66 and 15,501.80 is: 21,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.08 : 38,746.66 = 15,501.80 : x
  2. Step 2: Convert to fraction form
    28,077.08/38,746.66 = 15,501.80/x
  3. Step 3: Cross multiply
    28,077.08x = 38,746.66 × 15,501.80
  4. Step 4: Simplify right side
    28,077.08x = 600,642,973.99
  5. Step 5: Solve for x
    x = 600,642,973.99/28,077.08
  6. Step 6: Final answer
    x = 21,392.64

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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.