Home / 19,390.28-29,085.48-7,703.46

Finding the Fourth Proportional to 19,390.28, 29,085.48 and 7,703.46

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Solution

The fourth proportional to 19,390.28, 29,085.48 and 7,703.46 is: 11,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.28 : 29,085.48 = 7,703.46 : x
  2. Step 2: Convert to fraction form
    19,390.28/29,085.48 = 7,703.46/x
  3. Step 3: Cross multiply
    19,390.28x = 29,085.48 × 7,703.46
  4. Step 4: Simplify right side
    19,390.28x = 224,058,831.76
  5. Step 5: Solve for x
    x = 224,058,831.76/19,390.28
  6. Step 6: Final answer
    x = 11,555.22

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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.