Home / 21,547.95-29,739.71-12,593.70

Finding the Fourth Proportional to 21,547.95, 29,739.71 and 12,593.70

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Solution

The fourth proportional to 21,547.95, 29,739.71 and 12,593.70 is: 17,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.95 : 29,739.71 = 12,593.70 : x
  2. Step 2: Convert to fraction form
    21,547.95/29,739.71 = 12,593.70/x
  3. Step 3: Cross multiply
    21,547.95x = 29,739.71 × 12,593.70
  4. Step 4: Simplify right side
    21,547.95x = 374,533,030.11
  5. Step 5: Solve for x
    x = 374,533,030.11/21,547.95
  6. Step 6: Final answer
    x = 17,381.38

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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.