Home / 28,077.50-38,746.95-15,502.34

Finding the Fourth Proportional to 28,077.50, 38,746.95 and 15,502.34

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Solution

The fourth proportional to 28,077.50, 38,746.95 and 15,502.34 is: 21,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.50 : 38,746.95 = 15,502.34 : x
  2. Step 2: Convert to fraction form
    28,077.50/38,746.95 = 15,502.34/x
  3. Step 3: Cross multiply
    28,077.50x = 38,746.95 × 15,502.34
  4. Step 4: Simplify right side
    28,077.50x = 600,668,392.86
  5. Step 5: Solve for x
    x = 600,668,392.86/28,077.50
  6. Step 6: Final answer
    x = 21,393.23

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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.