Home / 28,547.16-42,869.74-17,518.60

Finding the Fourth Proportional to 28,547.16, 42,869.74 and 17,518.60

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Solution

The fourth proportional to 28,547.16, 42,869.74 and 17,518.60 is: 26,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.16 : 42,869.74 = 17,518.60 : x
  2. Step 2: Convert to fraction form
    28,547.16/42,869.74 = 17,518.60/x
  3. Step 3: Cross multiply
    28,547.16x = 42,869.74 × 17,518.60
  4. Step 4: Simplify right side
    28,547.16x = 751,017,827.16
  5. Step 5: Solve for x
    x = 751,017,827.16/28,547.16
  6. Step 6: Final answer
    x = 26,307.97

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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.