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Finding the Fourth Proportional to 21,970.59, 32,959.19 and 6,386.19

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Solution

The fourth proportional to 21,970.59, 32,959.19 and 6,386.19 is: 9,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,970.59 : 32,959.19 = 6,386.19 : x
  2. Step 2: Convert to fraction form
    21,970.59/32,959.19 = 6,386.19/x
  3. Step 3: Cross multiply
    21,970.59x = 32,959.19 × 6,386.19
  4. Step 4: Simplify right side
    21,970.59x = 210,483,649.59
  5. Step 5: Solve for x
    x = 210,483,649.59/21,970.59
  6. Step 6: Final answer
    x = 9,580.25

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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.