Home / 21,045.98-29,041.80-12,547.46

Finding the Fourth Proportional to 21,045.98, 29,041.80 and 12,547.46

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Solution

The fourth proportional to 21,045.98, 29,041.80 and 12,547.46 is: 17,314.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.98 : 29,041.80 = 12,547.46 : x
  2. Step 2: Convert to fraction form
    21,045.98/29,041.80 = 12,547.46/x
  3. Step 3: Cross multiply
    21,045.98x = 29,041.80 × 12,547.46
  4. Step 4: Simplify right side
    21,045.98x = 364,400,823.83
  5. Step 5: Solve for x
    x = 364,400,823.83/21,045.98
  6. Step 6: Final answer
    x = 17,314.51

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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.